(created at Tao's suggestion)
My coworker Tao has started frequently using an electric unicycle (EUC), here is his youtube channel: https://www.youtube.com/@taoroalin

He currently commutes on his EUC daily and goes on rides on the weekend.

I will judge whether Tao is 'severely injured', which would likely involve a trip to the hospital, multiple fractures, and weeks of healing. My brain is fuzzy today so I couldn't think of good objective criteria because maybe Tao decides to not go to the hospital but can't walk without assistance for >3 weeks, which I would consider to be severe.