I did a builders clean on a commercial property and as I reversed in, I hit a skip (not serious, but enough to put a slight dent in my bumper). I was a bit miffed.
The next day I returned to continue the job and reversed in again. I hit the same skip AGAIN, in exactly the same place and put a bigger dent in my bumper!
Luckily the job only took 2 days, or i'd have no van left!