What happens is that when you put the pressure on her loose to move away from you, she snakes her head at you. Its a sort of twisting and sometimes she does it and doesn't look at you. She does it on the lunge too. Again not all the time. I am assuming its a sort of "don't tell me what to do" or "I'm having the last word" She always does as she is told, but does do this snaking - is it a protest?
I'd describe her as a confident and dominant horse, she is almost always head honcho out in the field. When she isn't and someone challenges her, she usually has a fight with that horse.
Has anyone else had this and what do you make of it?