fallout 3 glitches!

i was at my friends on monday nite...

we were supposed to be studying for an exam we were having on tuesday but we were burnt out of studying so he started playing fallout 3(i must say it looks/is amazing lol )

so he was in the wasteland going for this radio tower when he saw a deathclaw off in the distance and so he went into vaps(the slow down time thingy) to critically hit it while it was a good distance away, ya know. and so he hits it while it saw him and started jumping towards him. then all of a sudden it flies up into the clouds and his dude keeps hitting him with his gun, but it doesnt kill it....

and so after my friend waited 1 hour game time and walked about around the same area for 15 minutes, the guy fawkes that is following us around starts shooting up in the sky and finally kills it!

it was hilarious...might had to b there to grasp the whole picture....but i was laughing like crazy

any good glitches story from u guys?