NPCs getting hit by their own traps is awesome, I love when I was fighting a bandit, she decided she was getting wasted so ran away, straight into a ball and chain trap, first one knocked her back so the second one could send her corpse flying into the wall. But the funniest sight has to be this:

Can't remember where it was, but I just walked in and found a dead goblin laying in a pool of water with his mouth underneath the tap of a keg, of course his body started floating off so I had to put him back for the screenshot. It seems like the developers did it on purpose because he was dead with no signs of a fight or any other creatures near him, but he was floating around so perhaps it was just luck that his mouth was underneath the tap when I walked in.
Oh and this Morrowind character generation referance made me laugh for ages, had to take a screenshot!

Hope nobody minds me not using links, they are piddly files, load in a second even for 56kers.