Yes, I did that today. I thought I was okay but after my workout, I realized I'd been flashing armpit hair!
But you know what? I'm cool with it. Anyone who has read my books has looked into my heart and soul. Yes, I may disguise certain people, events and even myself, but publishing my fiction is a bit like running around in a tank top without having shaved. If I didn't bare it all, if I try to be dishonest, than the stories wouldn't be compelling and you'd get bored and never remember a word I had written after you finished the book.
However, rest assured that when I came home from the gym and showered, I made sure to take care of business.