Lots of those in Elder Scrolls games, really, but I think my favorite in Oblivion is probably when Fithragaer-- the only surviving battlemage in Nenyond Twyll-- complains bitterly about the guild sending you there, then turns around and immediately runs into one of those rising floor traps.

Makes me laugh every time......

hahaa yea that's probably true, but with some moods it gets even better - like smashing some bandit's head with a roller. xD

Creating a dozen or so Adoring fans and blowing them off of Dive Rock

Standing on the frosty Field of battle watching the soldiers of Cyrodil Celebrate the destruction ofthe Great gate and knowing that not one of them died!

I personally enjoy when the Dark Brotherhood leaders get what's coming to them. Fools never saw it coming.

Oh, and it seems pretty common, but I once beheaded the Adoring Fan and he miraculously survived (the Nine obviously hate me), still bragging about how awesome I am.

When I found out I could kick while using unnecessary violence, I stole something by accident (random pickup. you know how it is) and this happened

Guard: Stop!
Me: *kicks face!*

battle ensues. I died promptly because I was laughing too hard