Vent about rude fatty at my gym So I belong to a gym that is overall amazing.  It is mostly for athletes who need some cross training, so we have runners, football players, and so on.  Well now, we have this one fatty.  Apparently she's an "athlete" or can't read what the gym is for.  Annoying, but not the reason i need to vent.  My husband and I work out together after work.  He can kill a workout, but also has stomach issues, similar to IBS, so sometimes he needs bathroom breaks.  Our trainer knows and doesn't say anything.  Fatty works out for 15 min then, red in the face, sits for the rest of the 45 min behind the desk (classes are an hour).  After the workout fatty says to husband that the workout is hard, but at least she didn't spend 20 min in the bathroom.  I wanted to hit her.  She is too fat to even run without snapping her knees, so she walks while we run sprints, and she's talking shit?  Fuck you fatty, get out of my gym so I can go back to enjoying my workouts.   I am also taking suggestions for bitchy things I can say that won't get me kicked out of the gym (owner is a super nice/kind guy so I can't just rage).  Anything backhanded or sounding helpful would be perfect.