S10E18: You Can't Do That on Television, Peter
MOTHER MAGGIE: Now, children, we're going to learn who wears a hat.
Can a fireman wear a hat?
No? CHILDREN: Yes.
Yes. Can a policeman wear a hat?
No way. CHILDREN: Yes.
Yeah, yeah, yeah, yeah, yes. Yes, he can, I knew that.
Now, you at home, tell me, who else wears a hat?