Unhealthiest thing i've done?
I was putting away trampolines at work (they are huge trampolines) and one of the metal poles on the wheels flung, did a 180 spin and bashed my head, i have a scar on my forehead now from it, i did not have a concussion, no mind loss, nothing, was just bleeding everywhere. So i'm basically a VERY lucky person xD
Subjected myself to mental torture from the Koreans for 12 months. I came back and was like a rock with my mental toughness. I can also now only count to 5.