The bad beat you speak of happened to me before too. I had set over set on the flop and the other guy turned quads. But right now I can't believe the one that happened to me yesterday. I flopped three of a kind fours (two in the hole) and my opponent flopped a pair of eights with a king kicker. We both got all in and the river and turn came king king. The odds of this are about one in 500!