For the corner latches, they should all be positioned with the handles towards the center of the camper before closing. I've not broken one yet, but I have a spare for when I do try bending them back and they break...not that I would ever do that...
I've shut down a couple of times with the roof vents open. I like to think I'm giving the camping neighbors some enjoyable entertainment as they watch me repeatedly store and expand the camper.
