Was that a pothole....

[Professor Peach]

I had similar wear (nothing as dramatic an end though) because I'd not checked the tyre pressure for a little while and one was very down. In the past I've always been able to easily tell when pressures are low by the way the car feels, but the wall on my 20's are so low and stiff, I simply didn't realise. I check more regularly now and am thinking about an aftermarket tyre pressure monitor (cheaper than a new set of Michelin's).

Really glad you're ok though!