Last thing we do is make sure all cabinet doors are latched, water pump off, faucets drained and then after I check, the DW checks and we put the slides in. When setting up, we check and all cabinet doors are still shut before running slides out. Didn't one time and had a cabinet door on the floor as a result. Door had never come open before, but some how, some way it came open. After repairing, in 3 yrs, it never came open again. Conclusion? We both missed making sure it was closed.