Vanity, thy name is vampire.
Don't mess with a wizard when he's wizarding!
Better safe than exsanguinated.
In the action business, when you don't want to say you ran like a mouse, you call it 'taking cover.' It's more heroic.
I've always felt that the best whips and chains are in the mind. With a little creativity, the physical ones are hardly necessary.
Wizards and computers get along about as well as flamethrowers and libraries.