Cabinet doors may pop open when traveling and especially if you have to cross a speed bump. When your rear tires cross the speed bump at a slight angle (not at the same time), this will cause your coach to rock side-to-side—sometimes with enough action to toss dishes out of upper cabinets. Plus, you do not have to be going fast for this to happen.
Purchase the “childproof” latches for cabinets. Get the ones that reach across both cabinet handles where you have matching doors. Don’t get the ones that attach to the inside of the cabinet door. Latch those doors together when you drive and be sure to go over those speed bumps dead slow.