Do you play along to keep the table happy?

[Mano]

So I was at the Wynn yesterday, and get seated at a 4/8 game where a loud guy and a bunch of his buddies are playing. He informs me that this is a "friendly" table, and whenever someone wins a showdown they are to throw the loser a buck back (he would also give people grief if they tipped "only" $1 if they won a pot of any reasonable size). The game was good, and everyone at the table seemed to be having a good time. Do you play along to keep everyone in a good mood, or refuse and risk souring the mood?