In over 50 years camping our only such problem happened just last year. Overnight while we slept, someone stole our sewer hose out of the RV compartment. The hose was still in the storeage compartment and was not hooked up to the sewer drain (I don't hook up until we are ready to leave each campground) and in the morning I found the hose and tank controls door open with the hose gone. Before leaving the campground that day I bought a new RINO hose and a lock that I put on the door.