I kind of like the Larry Niven approach.

Lock 'em up and let them be (involuntary organ donors until you've cut off so many pieces that it's no longer possible to keep them alive.

That way they do some good for someone, whether they like it or not.

The funny thing is, that many people, including a lot who support plain-vanilla capital punishment, would consider this idea cruel and barbaric.

But I never claimed to understand people.

Peter.