I know it's hard as hell to hear, but just seconds before the truck flipped, you can hear him say, "Hey ya'll watch this!" Maybe the owner of the mud pit put some stumps down in there to fuck with people. Looks like it worked, and some guy almost drowned in mud as the result. Awesome! Huge bonus for all the hicks trying to run out there, through that thick ass mud. They loved every minute of that.