You might appreciate this story from my bro-in-law who is a former psych-tech. There was one really wily guy in his institution who liked to go where he wasn’t supposed to be. One time he slipped through a door that was left unattended for a few seconds, and led the techs on a merry chase through the building, finally ending up in his room, where he gleefully jumped on his bed, turned around with a big grin and shouted, “SAFETY ZONE!!!”