nth-ing this. “Why, you mean relatively moderate, constant exercise throughout my youth has caused permanent knee damage? By the age of 14? Golly isn’t the human body great!”
</bitter>
In my freshman dorm, there were three stairs between my floor and the building door. For some reason I never took them one at a time while descending; I just sort of jumped*. The time I did that and tried landing on a very-fresh-and-badly-sprained ankle was not my best moment.
*I suppose it is possible that my tendency to do things like this is related to my prior comment about knees. But, still.