BiPolar Horses

I think Jessie is bipolar.

The other night she had a hell of a time trying to kill me and gave me a run for my money.  She even gave the trainer quite a ride.

Today, aside from taking off from the mounting block. She was amazing.  Responsive. Quick. Energetic. Supergirl.

The only thing that makes sense is that she is bipolar. I wonder if she can undergo cognitive behavioral therapy.