Perhaps it's something to do with these boxes. I bought one just before leaving the country on vacation to secure cash and passports in my room. I placed the keys and the cable in the UNLOCKED container with a rubber band around it to keep it closed (easy for TSA to inspect if needed) inside my checked bag. When I arrived at my hotel, I found the keys and cable laying among my clothes and the box itself looking as if they had skidded it across the tarmac! Still functional, but what?!?