Google, how do I hide the fact that I attempted to exercise without making it sound like I had sex?

I accidentally gave myself some very light welts on my arms last night, and didn’t realize until I got to work wearing a short sleeved top. Is ye olde bear attack excuse going to look too much like I’m hiding a sex/kink injury? Or will it make my coworkers double down with the questioning? They are attorneys, after all. They all relish a puzzle. 

Relatedly, it turns out that jumping rope is something you can forget how to do. I’m actually really excited about this development! It means that just figuring it out will keep me entertained and likely to do it for longer, and I’ll get the euphoria of getting noticeably better at something all over again.