OUCH
Horse training is a tough business. Just to show you how things aren't always perfect or smooth...here's a video clip for ya.
This is Corky and I today. Corky has mastered a lot of her basics, but the canter transition seems to be the sticky point. It's not that she can't do it, it's that ocasionally (more than 50% of the time!) she chooses not to do it. Once you convince her that cantering off is in her best interest, she does it and is fine.
www.janhare.com/badcorky_3_17_07.wmv
Don't worry, it only left a small bruise. But look how beautiful she looks once she finally canters off!