Bus breakdowns - in the US?

Yeah, it can happen in the US too.. On the way from Philadelphia to NYC, a tyre went bust and the virtually disintegrated until the bus came to a standstill.. It wasn't before 4 hot hours and a lot of cribbing that we were finally put onto another bus.. Meanwhile, I had some lousy company in the form of a cynical American lady who thought that the world was coming to an end.. Phew!