I have a customer that at the beginning of the year I had to ask them to move their car a few times so I could get into the back yard. Since then, they've been really good about keeping it out of my way. I show up to mow today, car is in the driveway. I wack the yard, get ready to mow, and the wife comes running out to move the car. She gets in, leaves the door open, and backs up down the driveway. Along the way, she catches a tree with the door, and totally bends the door backwards, crunching the door. She pulls forward, spends about ten minutes trying to get the door to close. I disappeared, not wanting to look like I was watching her. The door is totally ruined. And the worse part: I didn't need her to move the car in the first place!