For me it was the confrontation of Silk and Brill in Magician's Gambit when Silk throws Brill over the parapet. Belgarath asks Silk what happened to his opponent and the conversation progressed something like:
Silk - "The last time I looked I believe he was trying to learn to fly"
Belgarath - "Really? How was he doing?"
*Sound of distant crash*
Silk - "Does bouncing count?"
That so cracked me up the first time I read it. (I guess with my obsession with learning to fly in the RAF at the time, it had special meaning) So much so that every time I've re-read it since, I have a fond smile and remember the first time.
