That is so awesome.  I would have totally joined you if I had been there.  We could have surrounded the fats!  I would have set my treadmill on an interval setting.  One minute on and one minute off sprints, my current fave!  The faster the treadmill the better!  Nothing intimidates a fats like sprinting.  Abs, butt, arms---total muscle workout equals hot, strong body!  The fats are shamed and made afraid.