My father had two different people independently tell him not to put too much weight at the back of the caravan.
He knew better. He put most of the big, heavy stuff at the back of the caravan. It was more convenient to load it that way because you could still get in the door.
He rolled the caravan. Yes, rolled. Some people hear "Don't touch the electric fence" and immediately poke it to check. Not a good listener, my dad.