She does have attitude and is cranky, but she has always just done what has been asked, even if she's not happy about it. She is the friendliest horse in the entire world I think! She will come when you call, always has to be the one who gets to come out of the pen, she wants to be scratched and groomed and patted 24/7.
Anyway, awhile ago we went for a walk, and she got frustrated and angry for some reason and reared up. She did this one more time the next time we went for a walk. Both time we just made her stand there until she calmed down, then we continued.
The next time she reared was when I was having a lesson with her. My instructor was holding on for her (thank goodness - so she could properly correct her), she caught her ahead of time, and made her do small circles around her, until she relaxed.
So today, she reared up all the way two times in a row. She kept her distance and I gave her the slack, so she was not close to me. By the second time I decided I'd better get out, this was too much for me to handle. The she ran around for a minute, I relaxed, then I went up to her and started working on backing up, and lunging, and leading. She didn't rear and she completely respected my space and did what was asked.
I know it was bad to back off, but I'd rather not get hurt, and this was the first time she reared all the way up, and I was by myself.
I could have more respect form her, but I'm still earning it as we go. I don't think she was after me, because she didn't come at me, if anything she moved away from me before she went up.
I think she is trying to get away. For example it was stormy today and just for a second she wanted to run and play. I think this is what happened during the other times she reared as well.
BTW I have two extremely knowledgeable horse people who I WILL be talking to about this.
What should I do to discipline her if this happens again, when I'm by myself?