This is a crazy one. A couple of summers ago I was home on a weekday while my roommates were both at work, and I heard some commotion from a few houses down that sounded like a husband possibly about to get violent toward his wife (they were having a nasty argument). I decided to go out and investigate to see if I needed to call the police. So, I grabbed my cell phone, my pepper spray, but not my keys--and locked the door behind me. OOPS. They resolved their argument without it getting physical, and I went to go back inside and realized I had locked myself out. I called my roommate (who is also the owner of the building) but she was not available to come let me in. The windows were wide open so I figured the thing to do was to find a ladder, climb up to the second floor and try to push up the screen (or push it in if necessary) to get in. Of course, this being a weekday, most of the neighbors weren't around to borrow one from. I went to the neighbors across the street since they were home, but they didn't have a ladder either. They insisted on calling the fire department to bring theirs and let me back in (when they called they said I "might have left the stove on" or something like that)! So, that's how I got back into the apartment that day. How embarrassing (but really funny later)!