I don't mean that metaphorically.  I was at the dentist the other day and they told me I had clear signs of grinding my teeth, possibly while I slept.  I thought maybe I do it while I'm at the gym because I know that's not unheard of and the reason some lifters wear mouth guards while they train.  But Yesterday I was in a trade that was getting choppy that was making me nervous and then i noticed I was grinding my teeth really hard!  I had no Idea so just a heads up that you might be doing it too and not even realize it.