I went outside today to take the garbage out. When I came back the door was locked. I panicked. I couldn't remember pushing the lock closed as I walked out the door, but I do it so often, I may not have noticed. I stood there for a few minutes contemplating what I should do. I didn't have my cell phone and I was in flip flops and my pajamas.
Then it dawned on me.
I had come out the back gate. The back door was wide open.