Fine, I'm Pee-Shy, Okay?

Little girl in stall with her mother: Are you going to go?
Mother: No.
Little girl: You aren't going to go?
Mother: No.
Little girl: You aren't going to go?
Mother: No, I don't have to go.
Little girl: But you said you had to go!
Mother: I changed my mind.
Little girl: That's not something you can change your mind about!

--Ladies' Room, Saks Fifth Avenue

Overheard by: Harriet Vane