I imagine it was a mixture of not doing much heavy work before this and him finally feeling really good after regaining all his weight. He does fine at a trot, but he always gives a little buck when we go any faster. I've been trying to fix this, but I don't bother with it much considering the limited canter-friendly locations. This time I was just taken off guard a little more-so than usual and couldn't keep my seat.
Invariably, I asked how my horse was doing and where he'd run off to. Jerk didn't even stick around. He went back across the road and stopped. (Don't worry, it's a back-road not many use and the ones who do drive slow because there's a few equestrians in the area.) My friend checked on how responsive I was and took off back up the hill to get her car, Scotch followed. She was back in a giffy.
Obviously, I feel like crap. I have a scrape on my face (I landed on grass, so yay), a pretty sore shoulder, a bruised thigh, and a knee that doesn't want to be used. Hopefully work doesn't suck too badly tomorrow.
Hopefully my concussion will be gone by tomorrow.