I was running for my train. After entering in the station airlock, for a reason i still can’t explain, i turned right instead of continuing straight ahead and BAM, i hit a glass with my face. Now i have a little scar, fortunately hidden behind my eyebrow.
Touched a car cigarette lighter that I’d heated up myself while bored with the intent of just slipping a nail between the coils without skin contact and gave myself a new thumbprint.
Then I did that again a few years later.