Should Batman kill the Joker?

Blog@ asks if Batman should kill the Joker because the Joker is crazy, keeps killing people, and cannot be contained.

The answer, of course, is "No," and not just because "Batman doesn't kill."

No, Batman shouldn't kill the Joker because we can be pretty certain that he would quickly come back to life somehow, and we shouldn't be willing to take the risk of finding out what happens when an already-crazy person is thrown into a Lazarus Pit.