Not anger that results in physical abuse and unnecessary hitting of the horse, but yesterday, I got on a new horse and I'm generally too "nice" of a rider for a horse that needs "telling." This horse was generally taking the p*ss, so I got so angry that I let out a growl of "COOOOOOME ONNN!" and wouldn't take anymore nonsense of him. Just to clarify that i NEVER hit a horse unnecessarily, so this would not be in my nature, even in a fit of anger! He behaved himself a lot more until I had worked so hard that I had to stop because I felt sick with fatigue and tension