That's crazy stuff. I've never seen one that just blew up while sitting still like that. My brother drives a cement mixer and had a blow out recently on the front right tire while going about 50mph. The hoods on those things are completely fiberglass and the exploding tire completely removed the right side fender and half the hood, while pieces broke the windshield. He ran off the road, but wasn't hurt. His boss was just happy he didn't flip the thing. What a mess that would be.

Paul