That’s why you never hit the dock if you’re planning to do a pull up. Back up a couple feet away from the dock then do your pull up.I absolutely hate it when I've put a trailer to the dock, find that I'm somewhat off alignment, and then hear/feel through the fifth wheel that someone has already opened the trailer before I've set the brake. Sups here also like to have loaders re-open trailers after we've checked the back just to sneak in a few more packages. I think I'll replenish my supply of zip ties and make sure to use them today.