Is there any way to lock your racks? I don't mean little stoppers to stop the tubs from pulling out, I mean actually locking, so you have to have a code or key with a padlock to slide them out. Our balls are at my boyfriend's new house and his family are living with him until (or if) the house they are buying closes and they finish all the repair on it. Could be 2 months, could be a year. His little brother does not listen to anyone. About anything. So he keeps going and getting our snakes out without permission. and who knows how much he gets them out when we are not there. It bothers me so much, and he will not stop doing it. I'm also always worried he'll accidently pull the thermostat probes off the heat tape. So before I get arrested for beating a kid's ass, is there a way to lock the tubs? Thanks guys!