The reason that I don't use a yo-yo in my live performances is that my previous attempts at yo-yoing have ended with my being struck in the genitals by a yo-yo.
Madness string 1029
The knowing that something is broken, something is wrong, but no acceptable way to explain it, no acceptable way to express it, and no acceptable way to avoid the effects of it. So you keep doing the motions, keep subjecting yourself to the trauma, hoping that eventually you'll stop feeling it or stop caring that you feel it.