At my mom's I used to lock myself out regularly mostly because first thing in the morning leaving the house I'd simply grab my coat and not check my pockets so if my sister had "borrowed" my keys, I was without them.

When I lived in Canning Town, I got locked out of my room once (they had yale locks on all the bedroom doors) thankfully Aga one of the girls we lived with who I got along with was also home. We ended up hanging out in her room watching videos and stuff whilst avoiding our housemates we hated in the lounge. Was nice of her because I had to wait for my ex to get home and she was working on a late close shift which meant she'd get home around 3am.

In my current address I've been locked out a grand total of 2 times. 1st time I forgot to bring my keys out with me to work, thankfully my housemates were going drinking and to the theater that night in central london. I arranged to meet up on my lunch break and collect my keys from them so I could get in to the house. The second time I got locked out, well Baloki and Zorrander tried to lock me out of my house. I live in the garage conversion on the ground floor of the house. My windows were open so I simply climbed in through it whilst they stood there tittering at the front door.