What a rotten night Spree's owner had warned me that she was in heat, and that she shows some major attitude. Whew. During our lunging, she was completely stubborn, always trying to turn in the opposite direction that I had going in. When I'd ask her to keep going, she'd flatten those ears, kick out and then try to do it again next time around the circle. When I thought she was getting to a point of listening better, I brought out the saddle. It was like she'd never seen one before! She wouldn't stand still for a second, and after it fell off after I kept her moving when she wouldn't stand, she would avoid it like the plague while it was on the ground. I eventually got the saddle on, but when I went to tighten the girth (VERY slowly, it had hardly touched her belly) she reared up and backed away. I just kept working her on he lunging line, and it got to the point where I was actually a little scared, because she was not listening to me at all and instead of moving in response to my body language and where the lunge whip was, she was facing me, pawing and rearing a little. She was just acting incredibly pissed off and angry that I was asking her to do all these things.
I tried to end on a good note, having her follow me around without being on lead, but I honestly feel like I let her win because her aggressiveness was scaring me. I know it's mostly hormones here (or so I think), but I wasn't sure what else to do/try.