You can make a pet out of a snake!
A magnet only has two Poles.
You would pay to have a potato on you...
An adder.
Sleep in the wardrobe.
It lives on ice!
You rub them the wrong way
Because she was the Headmaster! My first submitted joke
Because there were too many rulers in school!
I dunno, but if it bites you, you can ride it to the hospital!