We had a person with a disability (nonverbal, wheelchair) who loves horses come to our place for the first time two years ago. She was unable even to get out of the van she was in, but on learning she loves horses, I brought around a couple of carrots and our ancient, gentle, retired gelding. (We've had him 27 years and don't think it's likely he'd seen a person with a severe disability before.) I gave the carrots to the girl and he calmly and gently ate them, and then stayed with his face in the van in close proximity to the delighted girl for over ten minutes after the carrots had been eaten, and way longer than he usually hangs around. He had no halter, no lead rope, no coercion of any sort, could have gone anywhere he liked but chose to stay with her, and sniffed her gently, and had his thoughtful face on the whole time.
Horses are very good observers of the environment and other creatures.
PS: This horse was considered dangerous, difficult, stubborn and unteachable by previous owners. The problem was not with the horse, who was a reliable and friendly horse for us the moment he felt safe with his new surroundings and people.
SueC is time travelling.