It was a windy day. I was outside raking up grass, spending half my time chasing the piles I had raked as the wind scattered them across the yard. Finally finished, I put the cart away in the shed. I decided to change the liner in the trash can while I was in there. Then I heard a "click." It took a few seconds for the implication of that sound to register: The shed door had blown closed. The click was the latch dropping into place. The door was locked, and I was inside. Oops. Oddly, I had just seen two movies involving people getting stuck in tight places: "Buried," and "127 Hours." Not encouraging. But not too scary, yet. Then I remembered that the temperature was supposed to drop to the 30s that night. (Yes, it was June. So?) Then I noticed a hornet's nest hanging over the door. So figuring out how to get out seemed important. Stick something through the opening in the door to trip the lock? Nope. Dig a hole under the door in the gravel floor with a little piece of metal I found? Possible, but it would take about 127 hours. Or I would make the hole too small and get stuck half-way out. Holler for help? This is the country--no neighbors within earshot. Use my rear end to slam open the door? That'll work. Thank goodness the screws weren't all that sturdy.
The reason I'm telling this story is not to advertise my tendency to get into silly predicaments. It's to warn you not to use this type of lock on an outbuilding if there's any danger that a small child or pet--or you--might wander in and get stuck.