And there's nothing better than giving your opponent one hell of a headshot during a Quake/CounterStrike/BF1942 session and just shout "pwn3d! H4h4! j00 n4p! h4h4h4!"
Makes you feel great...for about five seconds, but hey, better than nothing.

And now excuse me, I've got to demonstrate m4h 1337 sk!ll2 to d4 d4mn n4ps.