Ok, this sounds a little crazy but it's a real life situation that I'm trying to find a solution. I help with a few home repairs for an elderly widow lady. She calls me about 3-4 each times a year for things like toilet seat replacement, door repairs, gutter problems, etc. She called today and said she wanted a keyed lock that cannot be picked installed on her bedroom door. Her door has a Kwiki entry lockset that her 50 yo disabled son has learned how to pick. He enters her room and takes things when she is not home. I've met this son, he seems pretty shape, I'm guessing he has spent time on You Tube learning how to pick all the locks around the house. If he is that good, I can't think of any lockset that would defeat his skill. Hasp and padlock maybe but it would be on the ugly side. Any suggestions?