I sent a link to this vid to my friend awhile ago. She has an occasionally cranky and colic prone mare who nearly launched herself into orbit when touched in a couple of those spots. Lest to say the mare is now on ulcer meds and is doing so much better.
Anyone else think it looks like those horses were conditioned or schooled to react to being touched? The pinto looked happy and like he was expecting a treat when he palpated the pericardial spot. The buckskin just looked like it was tired of being poked.