I am a member of a branch of a national chain of gyms.
There is one member who is a total exercise obsessive. She goes to classes every morning, then the gym, then runs home, then is back again in the evening for more classes. As a former fitness professional I can see she has a problem, but that's a whole other thread.
Basically she dominates all of the classes. For example there is a very strict system of booking in for classes, but she gives the receptionist a list days ahead of when the booking list is opened and they book her in for the lot in advance. So she gets into every class. Spaces are at a premium and sometimes it's very hard to get places, especially for things like Body Pump and Zumba.
Next, at every class she is in, the instructors will say things like 'Oh we were going to do X routine now but as S came this morning and did it then we'll do something else' with no thought at all about any of the other customers. I have said before 'Actually I would like to do what you were originally going to do' but it still has to suit this woman. Or in a spinning class the instructor will start playing a track and she'll say 'I hate this one' and the instructors will swap tracks, again disregarding the fact that the other 19 of us in the lesson might like it!
Lastly, in the spinning room she has 'her' bike, in the front row and woe betide anyone who sits on it! Everyone tiptoes around her and if a newcomer sits on they all start saying 'Oh that's S's bike, you can't sit there'. I've seen her really create a scene when others have sat on it and she even stormed out of a huff once as she came in once the class had started, someone else was on the bike and she didn't like it. The instructor chased her out of the room and came back and 'negotiated' with the other person that they moved bikes!!
It's really starting to piss me off and I'm thinking of speaking the club manager about it. We all pay the same amount per month btw, and it's a gym with one level of membership for all, it's not like she's got 'super gold' membership and we're all on bronze or anything like that.