tons of funny moments in fallout 1 and 2.
in fallout 2 there's a couple thugs in new reno who say "i hope i'm a main character in fallout 3. being a thug svcks." or something.
also in fallout 2 when you find pretty boy lloyd and he leads you to the graveyard.
you can make him dig his way down there, and then the option "hey lloyd, catch! (throw the land mine down the hole)" appears. freakin' classic!
EDIT: just watched the video for the sarg in fallout 2.
LMAO! i never had the pleasure of that encounter. awesome.