And then there are the bathroom stall locks that are so flimsy that they often don't even manage to keep the door closed. I'm talking about the brain-dead design where you twist a knob to push a little button in the door into a little depression on the stall. Not only is this design clearly more complicated than a sliding latch, but it doesn't work at all if the stall gets more than a quarter inch out of alignment.

And, on the other end of things, I think that the locks on some of the stalls in my building *would* substantially slow down someone who really wanted to get in. I mean, it probably wouldn't stop them entirely, but I imagine it would take throwing your body against the door more than a couple times unless you're a professional door-buster. Or, y'know, climbing over the top of the stall. In any case, they're built to last, which I appreciate, not because I'm worried about people getting in, but because they always work.

All of which is totally beside your point, but that's what you get. :-)