My 50 ct that I've had since the beginning is now my "aging" humidor. I was going through my sticks to catalog them and when I opened the lid, it almost fell off backwards, the screws of the hinge pulled out! The hinge connected to the lid is ok, it's just where they hold to the humidor body that pulled out/stripped. What could cause that? My humidity is holding steady at 65 since I put my beads in there. I'm just going to get some longer screws and replace them but want to find out how to prevent this from happening to my 100 ct.