no matter how anal you are, if there is an idiot in the lot, he will find you.
Last week I went shopping and I parked in the side of the lot where there were 10 car spaces available on four different directions, I come back and find an idiot with a minivan parked right next to me, so close that I had to move my X5 up so my wife and son could get in. I don't understand why, I thought maybe he wanted to jack it up or do something as the idiot was still in the van talking on the phone.

So, no matter what you do, if it's your "lucky day" it will find you. Once they scraped both sides of my rear bumpers in my old vehicle, I have no clue how they did both sides, but they did it.