Chandler Bing: — So when I woke up this morning... he'd stolen all the insoles out of my shoes!
Monica Geller: — Why?
Chandler Bing: — He thinks I slept with his ex-girlfriend and killed his fish.
Phoebe Buffay: — Why would you kill his fish?
Chandler Bing: — Because sometimes after you sleep with someone... you have to kill a fish.