Because she had no arms. Knock Knock Who's there? Not Sally
Because she hasn't got arms!
Because someone threw a fridge at her....
Because she didn't have any arms. Knock Knock. Who's there? Definitely not Sally. Why did Jimmy drop his ice cream? He was hit by a truck Why didn't the truck turn out of the way? Sally Was driving
She had no arms Knock knock. Who's there? Not Sally. What did Sally get for her Birthday? We don't know, she didn't open it yet.
Never mind. It's pointless.
Because he doesn't have arms. Knock knock. Who's there? Not Joey.