We hardly use the micro either, maybe twice in the last year. Store glass plate outside micro. Noticed door on micro was dragging but couldn't figure out why, until the last trip when the micro became disconnected from the cabinet. Upon investigation, the micro was no longer connected to the face plate and when we pulled it out, the shelf the micro sits on had drilled holes into the wall of the trailer with the rear screws. Guessing micro gradually worked its way loose from metal frame and then rattled on the shelf and shook the screws out of the wall. Fix? New screws for micro frame since the ones that dropped to the bottom of the cabinet had stripped out. Put new screws in the back of the shelf and added additional screws to the sides of the shelf. Added foam feet to the bottom of the micro to sit on the shelf a little higher and not put so much stress on the screws holding the micro in the metal frame.