It was when I watched my nine month old choose the glass lid to drop on the linoleum floor over the flimsy steel lid due to noise factor and pure potential that I realized this monster truck business was bound to happen. It probably already occurred back in gladiator days. Those people could erect giant columns and bath houses, curious why they didn't pile up some of that rubble and mud to see which chariot could drive over it. Or did they and the placing people in a ring with lions generated more air play. The romullet was in the same social circles, but didn't quite make it in the history books. Here we are many years later and fans continue to pay for the whole seat even though they only need the edge.