We are human and no matter what system we have it will fail....hopefully with no damage.....Two things for me, do not talk when setting up or taking down...and follow the checklist. Distraction is always the culprit last year in tx had to tell young ranger to standby till I was finished hooking up....he understood....one time a man was a pest when I was setting up and told him to chat with DW until I was done and got cold shoulder from him for two weeks. Most campers understand not to disrupt. But again we are human and any system we design is designed to fail.....good luck on keeping it all to a minimum...