My horse has recently developed a new little trick. When I ask him to halt and stand for a few moments he backs up when I ask him to walk on. He first did it at a jump clinic when we stood in a group waiting for our turn and he refused to walk on when it was our go. He was quite bad and throwing his head at the same time and all I could do was turn him in small circles until he would walk. He has started doing it at home now, towards the end of the ride today when we were practicing transitions and standing square. He got really really cranky and would back up. It wasnt as bad as the first time, but I feel the habit is developing. I found that if I yelled at him and gave him a slap the second he didnt respond to my walk aid and started trying to back up he would walk on okay. If I didnt get it at the right moment, he would take quite a few steps backward and I felt like he wanted to rear when I tried to kick him forward so I had to circle.
Has anyone had this problem, know why it might be happening and the best way to solve it?
I haeva feeling that it is due to him getting tired and thinking halt means the session is over and trying to MAKE it be over.