One time my father in law forgot to put chocks under the wheels on a slopping site plus he had not put down the front legs of the 5th wheel. I think it was the excitment of seeing his grandkids after not seeing them for a couple of years that he was in a hurry to get the camper unhooked from the truck and he reached over and pulled the handle releasing the 5th wheel. Off it went down the hill the only thing that kept it from going into the woods was the OEM tailgate. Had he had one of those 5th wheel style tail gates grandma and the 2 grandkids would have had a wild ride.....