My friend is currently trying to sell his home. Like many of us, he bought high and hates the idea of having to sell low. So, he prays for the miraculous. For God to be gracious and have someone come knocking who loves the house and wants to buy it for well above market value. In essence, he's praying that God screw over some idiot. Now, of course, he didn't even think about that side of the prayer when praying. But, once you think about that side, it's a little harder to pray for it isn't it?