“Oh.” He'd never considered that there might be different kinds of horseshoe, but it made sense. Normal shoes came in all kinds of different varieties; he had his work boots, hiking boots, and loafers, as well as the dress shoes he almost never wore. Is the type of shoe a pony wears sort of a status symbol? On Earth, no one would trust a banker who wore battered sneakers to work. Maybe that was why Twilight was so reluctant to show her hoof at the hospital. She might have been embarrassed by her shoes.