When I put the radio on a blank AM station, it would make weird Atari-like video game noises that went up with the revs. My (former) friend says: "See what happens when you do a burnout!" Need I say more? The car went into limp mode, and we had to leave it at the mall overnight, during which some bastard hit the trunk with a pipe and threw eggs at it. Good thing I didn't stay with the car/own a shotgun or I'd be in jail and they'd be dead, after some strategically placed blasts of course.
I still get fuming mad when I think about that. My stepdad threw away the original diff. Being sort of a purist, I had wanted to rebuild it. You just don't throw away BMW parts. That was a bad 4 months.