Because she didn't have any arms. Knock knock. (Who's there?)...not Sarah.
When I fall in love it will be for heifer.
There may be leavesdropping
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.
Because she has no arms. Knock Knock. Who's there Not Sandra.
I didn't know you could yodel!
Because she had no arms. Knock-knock! "Who's there " Not Sarah.
Because I've met herbivore.