when i first started skateboarding i went to the local park with some friends and didnt realize you needed pads and helmets and all, so i rented some grimy one from there. Literally, the next day i wake up and ive got this like...this is gonna sound kinda gross but, you know how rasberries are all red and bumpy? it looked like i had a rasberry growin out of my face, next to my right eyebrow. i went to two or three doctors and none of them knew what it was. eventually that turned into a scab, and about a month later the scab went away and i was left with this weird scar that looks like a crooked x, which i still have. every time i go to the doctors they try to get me to get it taken off, but i like it, makes me look gnar.
not exactly an injury, but a good cautionary tale for the youth about the perils of renting helmets