Originally Posted by farmpony84
She also is not using any counter measures.
Yes, well said. If in a situation you can use counter measures, use the most sensible, gentle measure first.
Allow me to show you a situation when there were no counter measures.
*Note that I am not encouraging people to go out a try this themselves. This girl rides problem horses and young horses for a living, and this particular mare has a history of rearing and flipping over. She was at a show when the horse reverted back to her old habits (once and rearer, always a rearer) and almost flipped over at the in-gate. You can see that the mare made no second thoughts about it, and the rider reacted lightning quick with the best option at the time.