I did this once.
I was maybe about 8 - nah I was even younger, I was 7 at the oldest, because it was before my parents split up and I was still in the my first home.
I was plugging my lamp in and unplugging it - simple amusement for a simple mind
One of the times I was pulling it out I decided to put my Finger on the prong *just* before it was out of the wall - lucky thing too, I got a shock but the plug fell out of the wall.
I remember, it was a little scary actually lol.
The things I do