yes, I can see how a sight of galloping horses is a sight to remember, the power must have been palpable.
May I just say that I doubt it was correct to dismiss this episode as horses having their 'mad moments', don't you think?
I realize this was the explanation given by the horses' owner, but you know, people would do it sometimes, just give an off the cuff answer, even if they know better.
Being very much a herd animal, the horses may have actually followed their leader, who for some reason known only to him, decided to gallop
....