all are secured by old iron bars. we never had pets or animals around when i was growing up. i guess you could include traps behind your family too just to make it less obvious (and still difficult for someone to get there), but it seems like a good case of sort of hiding the vault in plain sight. you can stay away from everything that bothers you. “this started as a class project, but it ended up turning into something that we all want to do in the future. 