Quote from Frasier in Beware of Greeks
Nikos: My family adores her. You should hear my mom, she thinks Crystal's the best thing that ever happened to me. Frasier: Crystal? Nikos: Did I say that? I mean Mary-Ann. I must have been admiring the beautiful crystal over there, that's why I called her crystal. Frasier: Yes, it's a good thing you weren't admiring the pork-butt.