HA!
Last Friday I was playing. I was in a similar situation, except my opponent bet horribly. And I ended up losing a little bit, but not a lot to quad kings. The next hand I got a jack and a nine. Flop comes, queen, jack, nine. Great. I bet strong, he called. Then another jack. I bet stronger, he called. River comes, another jack, I put him all in, he calls. First I show my nine (he thinks I have a boat.) He puts down his queen thinking he's won it, then I show my jack.
Oh, he was so pissed off.
I remember on my deployment we had a hand where I had pocket fours and caught quads.
I was a chip leader at the time. I got THREE people all in, including 2nd place. One guy had a high straight. One guy had an ace high flush. The third guy had a jacks over four's full house (he had pocket jacks.) So at this point, you can imagine the atmosphere in this room, everybody getting one upped. I sit back, shake my head and say, "all I got is two pairs." And the guy with the boat thought he was in the clear and started raking chips. And then I laid my fours right next to the other fours. Oh man, people went ballistic. It was the greatest poker moment ever.