Quote from Natalie in Mr. Monk and the Red Herring
Natalie: What do you call a guy who studies fish? Adrian Monk: An ichthyologist. Natalie: That's what you are. Adrian Monk: No, I'm not. Natalie: Yes, you are. Adrian Monk: I really don't think I am. Natalie: Yeah, for the next five minutes, you are. I need you to tell Julie's teacher that a marble fish can live longer than two years, okay?