I walked out of the tavern and started running for Solitude. About 100 meters, in-game, I got sneak attacked by an assassin. I quickly cast 'Stoneflesh' on myself and started running back to Dragon Bridge. My plan was to get the guards to help me since I haven't got a very wide variety of spells yet and he was feisty Dunmer.
I got him to follow me and I ran to the nearest guard. The guard saw the situation with which he replied "This should be good"... And he stood there watching as me and the assassin had to battle it out. The other guards were busy patrolling the backside of the tavern apparently.
Thanks a lot guards. Glad to know you provide safety only for the town residence.

There are a couple of NPcs who speak about nord honor code and they only mention what I've written in my last post.
But they're imperial guards so I still think they should have reacted.


Must have been an awful let-down!