I guess up until this past year I had never done it and now I've done it twice.
Once I was backing our stock trailer out of a driveway that had two curves in it. We had just dropped a goat off to be bred and was backing out of the breeders driveway without going off of the driveway and leaving ruts. Pushed the front of the trailer into the bumper of the truck. Saw it when I got home. Went inside the trailer and kicked it backed out. No other damage. Then the other one was this summer at the Ohio State Fair. We were dropping goats off and then I asked where the campground was so I could take the camper there. Everyone said - Go this way. So I went that way only to find out at the end of this road the gate was locked.
With no one with me to help (they were at the goat barn) and a pretty busy place with everyone going every which way possible, backing wasn't feasible. So I decided to do a u-turn in a space maybe about 60 foot wide. It was tight. Ended up taking the right front tire of the truck up over a curb. Got it turned around, didn't hear or notice anything until I was unhooking at the campground. I put the bumper into the the WD bracket. Now I have a nice little circle on the left side of the bumper.