She is very claustrophobic. Whenever I'm leading her into the barn, she stops. Her head goes up, her eyes roll back. I put a small amount of pressure on her halter to bring her fowards. Even that small amount causes to her rear. Her feet go no more than six inches off the ground and she doesn't bolt or act overly foolish afterwards. She rears up and backs several steps.
How should this be handled? Rearing is dangerous. At this stage, it more of an annoyance then a danger, but I fear it will become more pronounced. Since it is from fear, I can't treat it like a rear stemming from brattiness. Punishing her will only make her more afraid, I fear. Buuuut... She should know this isn't an acceptable behavior. :/
Currently, I allow her to come back down and back a few steps before promptly requesting forward motion again. If she isn't allowed to move her feet (backwards, in this case), she becomes more paniced.