I got two regarding loot, both happened in Whiterun.

I once dropped two swords on the streets. A few moments later a guard walked up to me and told me that it is forbidden to let weapons lay
around as others "might hurt themselves".

And in the Inn in Whiterun i dropped a stolen Battleaxe and proceeded to talk to the Innkeeper as an old lady walked up to me to give me back my axe that
she thought i "accidentaly dropped" I tried to recreate this, but the lady just elft the inn the second time.

Both situations were just hilarious and i appreciate the efforts the Devs put into this to give the game some kind of soul

gotta love the level of detail and interaction they put into this game...unpresedented

Was fighting a dragon and a npc came outta nowhere to give me a dagger. We both died

Ran out of healing potions and decided to check out one more landmark before heading back home. Got attacked by a dragon. Ditched my horse and took cover in a tower. Ducking in and out of cover for about half an hour, I whittled the dragon's health with iron arrows, divinely inspired aim, and way too much patience. Took the battle to the ground with much roaring and terrible flames. Slew the dragon with a brilliant cinematic finishing move and only a sliver of health left.

Looked over to see my loyal steed standing serenely only a few meters away. Hadn't moved an inch.

Hop on the horse, get ready to travel, aggro 3 wolves. Get off the horse and he flees into the wilderness. Spend the next 10 minutes looking for him.

i was fighting a ghoul or one of those ancient nordic dead things in a 2 by 2 size room
anyway during the fight we accidentally kocked of a potion which stood on a pressure plate
one giant mammoth skull came rushing down, wooshed past me and hit the ghoul in front of me right in the kisser

BOOYAH!

I had a similiar experience with mammoth skulls traps...

A bandit leader who was pwning me chased me down a tunnel and I heard a 'whirrr-click-thunk-argh!' and he was hanging impaled on his own trap.

A good feeling.

I readied a fire spell in Whiterun once and a kid came up to me and said "You shouldn't play with fire.."

Another time in Riverrun I had taken off all my gear so I wasn't wearing ANYTHING and one of the kids was yelling "NAKED! NAKED NAKED!"

Well there was this bandit archer standing on top of a bridge. (I was sneaking at a safe distance).
Appearantly he saw great sport in firing arrows after a moose or a deer (I wasn't really paying atention).
Then he suddenly walks off the bridge and fall into the stream below it. A
fter killing the deer a few moments later, he simply walked back up to the bridge as if nothing had happened.

I had a brief encounter with a Giant earlier on today and he hit me once and I was sent hurtling hundreds of feet in the air!!! Got a lovely birds eye view of Skyrim!!! Wtf!!?

Was fighting some draugr with Lydia. She was fighting an Overlord and I was swarmed with regulars. My plan was to "Fus-Ro" the swarm, then run up and save Lydia from the thrashing she was getting.

... but I hadn't switched my shouts since the Greybeard Summons quest, and I was still on the whirlwind sprint. In an instant I'm catapulted across the room colliding with the back of the Overlord. I was still frantically clicking at the time. The whirlwind sprint ended just as I clicked, and it transitioned straight into a one-handed finishing move. Blade slams through the Overlord's spine and explodes out the center of the chest right in front of Lydia's face.

It was all so fast I would have missed it if I blinked.

being attacked by a dragon when two giants came over and attacked the dragon.
defeated the dragon had to run for my life from the giants,a level six character would die in two or three blows against giants

I was wandering the plains and in the distance I see some guy running back and forth, as I walked closer I noticed he was trying to run from a sabertooth cat and I noticed he started running straight at me!! I was like "wtf?" as soon as he got to me he stopped to give me a letter and in the middle of his sentence this cat tackled him from behind right infront of my face and annihilated the postman. I never got my letter....

My reanimated corpse who was moaning "I need to kill" without any enemy's present.

I immediately eliminated my minion.

Walking into a beautiful tranquil landscape, birds singing.
Then out of the blue, two trolls attack me, then three wolves, then a spriggon, then another wolf.
Then starts raining, perfect and calm to OMFG in the space of 5 minutes. :/

After releasing myself and the Forsworn from Markarth's prison , a bunch of guards appeared together with a rich guy that controlled all the guards with money.They said some phrases , I prepared myself and then the barbaric Forsworn charged and beated the guards so much...I didn't even have the chance to hit 'em.After that , we kept going to Markarth , many more guards appeared , the Forsworn killed them insanely and occupied the entire city.I left the city and the Forsworn came behind , there were guards outside...they started running to their homeland and the guards went behind them , the horses were running , a mage was throwing fancy magics , and everybody was running to the same place.Most of the Forsworn got away and climbed up a mountain , and then guess what happened , a dragon appeared and started to attack the guys down there.I lol'd so much

Level 6 or 7 me walking through a tundra when I see a dragon swooping over a bunch of giants and their mamoths. The heroic me decides that I should protect the poor defenceless giants againsts the dragon and make my way over, bow ready, when BAAAM the giant hits me over the head and I'm sent flying like 100 feet higher than the dragon and fall to my death. Nice giant, maybe next time the dragon can eat your silly a s s.

Saw a frost troll kick a dragon's ass, then kick mine.

I was taking care of some chores in Whiterun (selling, upgrading, etc.) walking between buildings when a naked man runs up to me (he was wearing his loincloth/undies). He initiates a conversation with me, hands me a letter, turns and continues on his way. All I can imagine is that he was robbed on the way?

Sent four wolves flying in the air with one duel-sworded power attack. It felt awesome.

Going to clear out some ruins full of Bandits (a bounty quest from Whiterun). I was being all sneaky about to stealth kill the first one with an arrow when out of nowhere a dragon dropped in the middle of the camp and started torching everything. I was all 0_0 and just stood there and watched the dragon do the work for me....

I was staying at the inn in Riften before i slept in the beed i closed the door and dropped a potion to see how it looked but i made sure to pick up the potion before resting. In the morning i was taken by surprise when five or six different people standing in the little room with two person brawling about the potion. After a wile booth draw a dagger and started to swing them against each other but between them it was a other person who died but the two violent mens continued to fight until on of them dropped dead. The strangest part was that no one reacted about the first guy who died.

Are you serious? A guard said to not lay a weapon on the ground because people might hurt themselves? And this is in Skyrim, land of the Nords? Oh my god, Bethesda is becoming a big melting pot of hippies, soccer moms and liberals. With the Whiterun inn, that sounds reasonable. This is a new engine they're using and it's in its infancy, so things like that lady returning your sword is just part of the flawed system Creation uses. With the technology Bethesda is using, it's pretty difficult for NPCs to tell whether you dropped something deliberately or accidentally. Even in real life, that's hard to ascertain. I suggest that with improvements, if an NPC is curious as to why Player dropped his weapon, the NPC can decide whether to approach Player regarding his weapon or not. Like, the NPC can ask you why you dropped your weapon on the ground.

I am riding my horse along a cliff, approaching a dragons nest. The dragon didn't see me, so I hopped off my horse, left him up there, and slid down the cliff a couple hundred feet. Dragon spots me, takes off in the air, and then lands on top of the cliff. I can hear my horse neighing and see the flames shooting out of the dragon's mouth, as he proceeds to cook his dinner. My poor horse.

Another time I was doing the "Taking Care of Business" quest. I had just killed all the guards on the island, and was about to torch the beehives, when a dragon came swooping down and torched the whole place. I didn't even get to kill him because he just flew away to the nearby mountain.

At the location of the first encounter with The Companions, the giant's weapon began floating into the sky at a steady pace without stopping. I just stood and watched for a while. Definite "Wtf?" reaction.

Lydia, in my house in Whiterun, stood next to a chair by my bed and repeatedly sat/stood over and over again.

After a certain encounter with Alduin at a time and place non-disclosed, I found the body of a Stormcloak Soldier simply hovering above the ground with his armor in his inventory, but not equipped.

I placed the Ebony Claw on a shelf in my home as decoration, next to a unique weapon I had placed on my weapon rack. About 5 levels later, I returned home to find it gone. Searched around the house a bit, assuming it had been bumped into by Lydia, but nope. Stolen (or simply disappeared). I was quite disappointed.

Also, at my very first playthrough of the game, "Wtf?" was my general reaction to how awesome the introduction and escape was.