Quote from Bulldog in The Unnatural
Bulldog: Hey, look, I know how tough it is when you're a kid and you find out your dad's not as great as you thought. Look, I was about Frederick's age when- Well, I came home, my mom was out and I caught my dad with another woman. Frasier: Oh, Bulldog, I'm sorry. Bulldog: No, no, wait, you haven't heard the bad part yet. She was ugly, doc. I mean coyote ugly. My own dad. And the best excuse he could come up with was, "Hey, you don't look at the mantle when you're poking the fire!" Hey! I just got that. [chuckling]