Martin: Boy, I really clobbered you though, didn't I? I got almost all of your prawns.
Frasier: Pawns, Dad.
Martin: I think the turning point was when I got that tower-thingy.
Frasier: Yes, it's called a rook.
Martin: But the real knockout blow was when I backed your little horsey-guy into the corner.
Frasier: Can we call it a night, Dad?
Martin: Okay, when I cornered your knight.
Frasier: No. I mean, can we call it a night?