Silently, I crouched in front of his door and used one of my lock picks to stuff the keyhole full of quick-drying putty. Then I quickly removed the tiny screws holding the door handle together, sliding the handle out of the door completely and tossing it onto the carpet outside the bedroom. Now, when he tried to open the door on his side, the handle would just fall out. And if he knew how to pick locks, he wouldn’t get far with all the putty gumming it up.

