Because he was a potato!
You have an ax-i-dent (accident).
A baby falling out of an airplane.
Cause she's got no arms. Knock Knock. Who's there? Not Sally.
Didn't have any hands.. (the real punch line) Knock knock.. Who's there Not Timmy..
Customer: Oh I just moved the potatoes and there it was!
A friar? A chip monk?
Blew the dog