You open the door, and see a small box. You open the box and see a bat and a small skeleton inside.
They hop out and speak to you:
"So, you've come here to try our quiz, eh!
Well... here's the question, what will we do to you if you guess wrong? Is it:

A. Kill you,
B. Break all the bones in your body,
C. Drain all the blood from your body, or
D. All of the above?"