I *think* he spooked and threw me to one side and then I expect I landed like a sack of the proverbial which he then took aversion to and set forth bucking across the school. I sat a few but eventually I gave up and sort of plonked off flat on my back. Hopped straight back on and it was like nothing had happened. We had a nice jump in preperation for Sunday and then he gave pony rides to the bf of one of the girls at the yard. Very strange!