Another one of those button questions.

[a500lbgorilla]

I hate to be the guy to break it to you, but the button doesn't exist. The point of the exercise is, as I said, to find somebody's lowest price. If we're living in your world why does the button kill me 1% of the time when it could kill me 0% of the time?

I said it before, if that's your goal, the question isn't right. There's a better way to ask it. If you want to force someone towards their minimum, you need a force.