Did mine a couple of months ago only not in the usual way. You know how people say you have to pay attention to detail, have a set-up procedure and stick to it? Well, I must have missed that one. We came home from a trip and I backed the 5er into it's spot. It is on a slight side hill so I put a board under the left wheels. I started the landing gear down then decided to unhook the breakaway and take the pin out of the handle. For some stupid reason, I thought "while I'm here, I'll just pull the handle". The trailer rolled back a little and since I did not have the landing gear all the way down, it slid onto the truck. Fortunately just a scuff. It's chocked all the time now......