The other day, when I was driving to see Halo, I was thinking, I would try and take her in the round pen, and do a bit of lunging...it would be my first time, by myself doing that, but I was just thinking of making her walk/trot, at the most. When I got to the ranch, as I was talking to the ranch hand, he had told me he had let Halo out, in the round pen around that morning, before I had gotten there. He didn't lunge her, but she does run around, and pretty fast too, when they have done that before with her. So to be safe, I didn't take her in there. I go about 2-3 days a week, and I am trying to make them set days, but that isn't happening all the time. But if I had taken her in there, would that of been too much, in one day, for her? She won't be two until the middle of June, and I don't want to do anything to mess up her joints. If it would be too much for her, I guess I could just try and give them some days, as not to do that with her, as I plan on doing it then. But if it would of been ok, then I won't worry about it.