From what I've seen tires don't really blow as in pieces everywhere but tear then slap around, retreads when they blow tend to remove all the tread which is why

From what I've seen tires don't really blow as in pieces everywhere but tear then slap around, retreads when they blow tend to remove all the tread which is why you see half a tread on the side of the road sometimes. Containment isn't really too much of an issue IMO. Even thick (3/8) aluminum fenders get destroyed.