Went on my usual early Saturday am ride, beautiful, cool morning...Totally uneventful. Until coming back into town. I was two back from a belly dump truck, all of a sudden, a complete wheel comes flying off the trailer. We were all going about 50 so the wheel became a missle just off to the right. After hitting a ditch, it went about thirty feet in the air, bouncing wildly when it came down. It starts heading for a construction site where there are three unsuspecting guys shoveling gravel and a backhoe working....by now, I'm thinking bowling...just before it gets to them, it hits a mound of dirt and goes right over the top of the backhoe and lands on a mailbox. It explodes like a roadside bomb sending bricks and wood flying into the street. The wheel then takes a sharp left back out into traffic almost nailing a tahoe, hits a tree and comes to a rest. Mind you, all this happens in a split second. For a moment, I thought I had just aquired Moon Trucking.....or the wife at least. I can't imagine that wheel hitting a bike, would have been all over...you never would have seen what hit you. I'm going to buy a lotto ticket today....woohoo!