A couple days ago, my arab was showing a lot of attitude when I went to ride her, so I rode her back up to the barn and started lunging her. She did pretty good, except for stopping. When I say WHOA, she doesn't stop. I had to give a lil tug on the lunge line, then she would stop and face me. My question is, what is the best method to get her to stop when I say whoa? Should I ride her while someone else lunges her and give a lil tug on the reigns when they say whoa? Or is there a better way to go about this? Any advice would be great as I'm kinda new to lunging!