How Random is That? (Clarification)

It was a rock that came through the window that took out my tooth. I failed to mention that. Finding the culprit will be a CSI feat. The floor of the pick-up (which hasn't been vaccumed for at least 48 hours) is covered with pebbles of all shape and size, not to mention shards of spit tooth, Cheerios(tm), other small child edibles (all stale or headed there, mind you) and whatever other detritus collects on the floor of a truck over the course of a summer, er, I mean 48 hours.