[TalonDJ]

Are the all poping in the same way? A brush with a curb can destroy a sidewall without much trouble. That is one of the few ways a person's driving habit/skill can consistently take out tires.

[RosieCotton]

I think they've all been different! One was a leaky valve, I think, another a firewall blowout, another was really her fault - she ran over a bag in the road that turned out to have a glass bottle in it. I dunno about the fourth. Most have happened suddenly on backroads without a curb anywhere nearby.

So...I have no idea!