Gym Etiquette

I can't believe I am writing this post and I wouldn't be if it was not for an exchange between me and another woman at the gym yesterday.  I love the shared experience of a fitness class with other people because I am sociable and love working out in a group.  So what happened yesterday had me scratching my head in disbelief and frustration.

Zumba classes are great. Although it is not easy for me to memorize the routines, the workout is fun and for the most part people embrace it and have fun.  I know I am not the only one who struggles and occcasionally misses a step.  Well during one of the songs yesterday in the routine, a lady and I accidentally collided.  This has happened to me before, it is fairly common.  Zumba is a fast moving routine and sometimes you make a wrong turn or step.  I couldn't believe what happened next.  This lady turned around to face me, I was thinking we would both brush it off and say "sorry" or "excuse me".  Nope, she lodged some personal insults at me.  I have been taking fitness classes for years and have never been confronted like this. 

The worst part is this other lady is a "regular" and I know we will continue to cross paths.  So what would be an appropriate response if this happens again? I was in such shock yesterday all I did was shake my head in disbelief.

Have you ever had an unpleasant confrontation at the gym and how did you handle it?