I've been using this question as a pretty good ice-breaker the last couple weeks:
Soooo... if you had to wrestle an animal, which animal would it be? Now remember! It can't be too weak, because that would be viewed as animal abuse, but it can't be too ferocious, or else you die. What would you choose?
I chose a croc.
Why, you ask?
Because of the leverage, man! This guy might be able to snap me in half, but all I've got to do is sit on his face and I've won.
That came out wrong. But it's true.