Quote from Martin in The Two Mrs. Cranes
Clive: So, Daphne tells me that you two are both psychiatrists. Frasier: Yes. Clive: Fascinating. Are you a psychiatrist as well, Marty? Martin: Me? No, I'm retired. Clive: And what'd you do? Martin: I was an astronaut. [Niles and Daphne sit down in shock]