Indeed. Today I got practice tightening door handles. "Hm, the handle to my closet is loose." *stomp stomp stomp downstairs for the screwdriver, since the one on my knife was too bulky*

... now that I have tightened every door handle in the house except for the ones we've installed, I've discovered that the one in the guest room has a stripped screw and a non-matching handle -- they must have allowed the previous occupant to install one with a lock.