Funny how we are all getting in the same boat. luckily my son seems pretty honest so far, what that means is I have not caught any thing missing that’s all. just an idea I had thought od was simply adding sliding doors that overlap a little ? There has to be some metal tracks that would screw to the top and bottom of the bar opening. you could then simply install a nice looking hasp and padlock. then once we kick the kids out of the house just remove the sliding doors and tracks, a little screw hole touchups and back to normal. just a thought rather than a lot of time making doors, you might even buy some clear plexiglass type material for the sliding panels etc ?