Woody: That wasn't the best prank we played. You remember that time with Mr. Clavin?
Frasier: Oh, yes. And the ferret!
Woody: He was about to go on his round and we shoved an angry ferret into his mailbag.
Niles: Oh. Oh, my. Exactly, uh, how do you make a ferret angry?
Woody: Well, for starters, you shove him into a mailbag.
Frasier: God, that was funny. Do you remember the expression on his face?
Woody: Oh, no, I never saw his face. I was too busy looking at Mr. Clavin.