Probably a bit late to this, but my late father used to say that he would swear that some days his car was invisible, and people seemed to always head straight for the car. It did not matter what colour it was, but other times all was good. Another phenomenon is the freshly repaired or new car attraction syndrome, where it seemed that something would scrape the sides or even the back during the days after it was first driven.
Myself, I think these are just variations of the laws of Mr Sod and Murphy. A friend of mine came across this in a very expensive way some years ago. She had bought herself a second hand aeroplane, and it had been serviced and all systems tested. It was a Jodel, a very robust craft, but she still lost it because on a flight from the Netherlands to Iceland a small hole or leak of some kind developed in the fuel system and she had to ditch it in the sea about a couple of hundred yards from the Icelandic coast. Insurance would not pay up due to them saying that although she had paid her money, the processing had not been finished. I think they eventually settled the claim, but not in full. So think of this the next time you get just a dent in a van. Brian