Chandler: (About Joey finishing his cereal, licking his spoon, and putting it back in the silverware drawer) The spoon. You licked and, and you put. You licked and you put!
Joey: Yeah, so.
Chandler: Well don't you see how gross that is? I mean that's like you using my toothbrush. (Joey looks sheepish) You used my toothbrush?
Joey: Well, that was only because I used the red one to unclog the drain.
Chandler: Mine is the red one! Oh God. Can open, worms everywhere.
Joey: Hey, why can't we use the same toothbrush, but we can use the same soap?
Chandler: Because soap is soap. It's self-cleaning.
Joey: All right, well next time you take a shower, think about the last thing I wash and the first thing you wash.