A Joke

Michaels joke:
Michael: Knock, knock.
Me: Who's there?
Michael: Norma Lee.
Me: Norma Lee who?
Michael: Normally I don't go around knocking on doors, but would you like to buy an encyclopedia?

Megans version:
Meg: Knock, knock.
Me: Who's there?
Meg: Norma Lee.
Me: Norma Lee who?
Meg: Normally I don't go around buying stores, but would you like to buy a pediacycle?