I've locked myself out of my condo before when I went downstairs to do the my laundry. I knocked on my neighbors door and I was able to use her phone and I called my dad who was able to come and give me a spare key so I could then get back inside. I did the same thing again but this time my parents and my brother were all at a wedding that day so there was no one that I could call that would have a key. Luckily I had my sliding glass door open to my balcony with only the screen door part closed. I knocked on my neighbors door again and her male roommate was there and he's very tall. I live on the second floor and he was able to climb up the fence and onto my balcony. He then opened the screen door and he was then able to let me into my condo. Now I always double check my pockets for keys before I leave my condo. A few former roommates have also locked themselves out before and they had to call me at work to let me know or they just waited patiently inside the building until I got home.

I've also locked my keys in my car and I had to call AAA to come and open up my car door for me. My current car beeps if you open up the door while the keys are still in the ignition so now this doesn't happen any more.