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[–] setitimer 0 points 1 point (+1|-0) ago  (edited ago)

I have a faint one between my eyebrows from when I was knocked unconscious by a swing in a park. When I was about 13, the city park in the little town where I grew up installed some new-fangled playground equipment, including this one really ill-advised swing that rotated around in a circle and lifted the riders through centrifugal force1. One day, as I was walking past the swing, someone on the other side swung one of the seats really hard, causing its counterpart to loop around and hit me in the face. The seats were these heavy hard-rubber things. I don't remember the actual hit, just getting up and noticing that one of the lenses on my glasses was filled with blood.

It's a vertical scar about 1/2 inch long. Not really visible any more due to frown lines, but I know it's there.

1 - yes I am aware this is not a real thing, but it's easier than saying "The reaction force to the centripetal force."