A: Because she has no arms! Knock knock. Who's there Not Susie!
Thalidomide
Her arms are amputated.
Because she was hit by a bus.
It had no arms.
Because she had no arms. Knock, knock! (Who's there ) Well, it ain't Mary.
A race condition. Who is there?
Because she has no arms. Knock Knock. Who's there Not Sandra.
A. Wheeeee!!!!!
Niisan.