I was sprinting south of whiterun, weilding my glass sword in my right and my orc sowrd in my left. I like the way the character holds the blades when he sprints. Like a ninja. Anyways i was sprinting, weapons brandished, oh and it was foggy. Anyways i was sprinting around then, out of nowhere another sprinting dark spectre weilding two swords sprints right towards me. It was the DB assassin. It was just perfect cause we both sprinted into each other weapons drawn and hacked away at each other. I won of course. so far thats been the coolest thing thats happened to me. a ninja like fight hehehe. just thought id share that

Haha, sounds humurous.

Had one sprint toward me as well... but I was walking peacefully, just after despatching a few rogue Imperial Legionaires. I just began the game to, so I was seriously wondering what I could have done to warrant a death contract.

It was just west of Haffingar, near the most top-left part of the map, me heading south and east.

Speaking of such encounters... I remember pacing quickly away from a bandit dungeon near Riften, toward Riften, when I bumped into a trio of guys dressed up in banded iron armor. Dashed by the last or second one in line (whoever 'stuck out' the most), hitting his shoulder, and looked back out of startlement. He told me to watch where I am going, the force of the impact cuasing him to steer toward me briefly, then upon a closer look at me, him and the other two became hostile.
They were hired by Marven Black-Briar to kill me, and well, almost missed the chance lol.

I was running alongside the river on the way to Kynesgrove or whatever the place is called, when the DB assassin came after me. I dispatched him and tossed the body in the river.

Now this doesnt really qualify as badass or anything, but I was exploring Sightless Pit and came across a falmer. We start swing swords at one another, and we both landed killing blows on each at the exact same time.

Reminiscent of the action movie cliche, I was sneaking through Embershard Mine and spot a bandit archer on the bridge over the little lake near the forge. I fire an arrow, and it knocked her off the bridge and into the lake.