My advice is to start cutting back on the control-freak addiction. In two years he will be 18, leaving your house (probably flipping you off on the way out), and you will be going 'cold turkey'. Better to ween yourself off slowly, beginning now, than an abrupt shock to the system later. It sounds like not only do you want to barge in at will, but don't even allow him a lock on the door. Better hope he can endure your antics another couple years, or you may end up with a runaway.