Quote from Natalie in Mr. Monk and the Red Herring
Natalie: Hey. I wanna talk to you about this fish. Is there anything special? Anything unusual about him I should know? Carl: Like what? Is he sick? He looks okay to me. Natalie: No, no, I mean, is he valuable? Carl: He's just a marble fish, Mrs. Teeger. We sell them for 99 cents. We got about a thousand of them. If you'd like your money back... Natalie: No, Carl, I'm not returning him. Is there any reason why someone might want this particular fish? Carl: I mean, really, really want him? Uh, well, he's sorta pretty. And he's got a thin, black stripe on his dorsal fin... Natalie: Mr. Monk, what do you think?