Unqualified trainers teaching groups. By that I mean a personal trainer teaching small group classes but haven’t been trained to teach groups. As a group instructor and personal trainer, it is really easy to tell when someone hasn’t been trainer by the way their classes go. It usually shows in lack of proper instruction and correction throughout the class.
My heart is hurt when I see guys, specifically, going into the gym and doing the same exercises again, and again, and again, never changing the exercises. These are usually the same guys who carry their ego beyond the threshold of the gym doors. I had to try out a lot of gyms before I found one that I was comfortable at.