Bill, my bed sits firmly on the supports. But the supports sit maybe 12" or so back from the extreme edge (the ends of the TM) of the bed. So, if you lift up on the bed as in the emergency exit mode, about a foot of the back of the bed swivels down.....where the supports attach to the bed act as a fulcrum. So my concern, since I can easily pull down on the bed tray from the outside to swivel the bed, is that maybe someone could go to the end walls and get enough weight past the fulcrum point to make the bed swivel up........like you are using it in the escape hatch mode. Only the escape hatch is going to be on the wrong part of the bed.
Chap