Quote from Frasier in You Can't Tell a Crook by His Cover
Daphne: You know I was talking about Eddie. He's long overdue for a- Martin: Hey, don't! Don't say that word. Daphne: What word? Martin: B-A-T-H. [Eddie runs away] Frasier: When he yawns it may smell like swamp gas, but his spelling's improving.