I would always have some support from the ground to the camper bottom when it's off. I had just taken mine off, driven the truck out, and started walking back to the camper in time to see the bottom fall out of it and slowly tip forward and do a forward flip. After I stripped anything good I burned it. Hottest fire I've ever seen.
I don't know if the engineers set them up for anything to be in there before bracing.
If you don't want to get shot by the police, don't be a criminal!
Winnebago adventurer 37g, 96 tracker