Bent rear axle
 

I have owned my 2002 Saab 93 T for more than 2 yrs. Recently took it in for an issue, and while checking it out the mechanic discovered my left rear axle was bent, resulting in serious wear to the rear tires.
I had noticed soon after buying the car that the rear tires leaned inward when the car was parked. Not being that familiar with the car, I assumed that it was just the way the suspension was designed.
Does anyone know how in the hell someone could bend an axle??