I don't know. Torqu?
A: So they don't get a concussion while bobbing their from head side to side as they are saying "I don't know " whenever you ask them a question.
A: The leash goes slack.
Working legs.
Disclaimer: I don't know how well this joke will work in english. What's yellow and lies in a pond? An excevator. You don't think this is funny? Neither does the operator.
I've bean everywhere, ma'am!
All of them.