A couple of years ago we were camping at Myrtle Beach State Park. The "we" included my wife, oldest son, daughter, youngest son, and myself.
My youngest son who was two at the time liked to play with the locks while inside the tear. He would dart from side to side playing with them.
While getting ready for a walk we were all outside the tear except for Ian, our youngest at two.
Needless to say he locks the doors shut on both sides. So...we had a two year old locked in the camper. We have no keys for the door latches as they are cheaper that way.
After an hour or so of coaxing Ian to unlock the door and him crying I got my screwdriver and unscrewed the window from the camper.