Because he doesn't have arms. Knock knock. Who's there? Not Joey.
Disarmed.
Thalidomide
She got hit by a bus. Why did Sally fall off the swing? She lost her arms when she was hit by a bus. Why did Sally not get back on the swing? She also lost her legs. Knock knock Who's there? Not Sally. What did Sally get for Christmas? I don't know, she couldn't open it.
A race condition. Who is there?
The pilot.
It makes no sense, he's not a good driver, he and all his friends are always stuck in second gear