My rescue dog runs agility for me very well, everywhere EXCEPT for the training center where I train. She will play with me and heel but she won’t do obstacles. She's very sensitive and will act like she's crushed if I use a negative marker. Any advice would be appreciated.

First, let me say all of your videos/articles on engagement have made my life much easier, but I've run into something where I'm stumped, as is everyone at the dog school where I take agility.

My 2-year-old Pit runs great for me at home and everywhere, except our dog school, where she will run for everyone but me. When I walk in the main agility ring with her, she stops and looks like I'm about to beat her. I can do my engagement exercises with her and get her engaged and playing with me, do focused heeling and everything else, but can't direct her over obstacles. This just happens in the agility ring at the dog school, and only if I'm handling her. If we set up the agility obstacles in a different ring, she acts like she has a blast doing agility with me.

She is a rescue. I'm not sure what happened before we got her, but she is VERY sensitive. She acts like I have to be careful with how I use negative markers or she acts like she is crushed. Appreciate any ideas you can give me.