|and there was an episode that I can't recall now, where Chandler says "You think we should actually cook for ourselves?" and not two seconds later, they burst out laughing|
I think that's in 'TO After the Super Bowl' from season 2. Yeah, that is a REALLY funny moment! I STILL laugh out loud everytime I watch it. Related to this: in 'TOW two parties': when Monica walks into Joey and Chandler's party and asks to be quiet, because she wants to play some dull game at her party, they also burst out into laughter.
But the *funniest* moment? I guess that's Robin Williams and Billy Cristal making a scène in Central Perk. It had nothing to do with the Friends, but it was SO hilarious!