I assume that people wouldn't voluntarily and regularly walk around barefoot on dog feces (or feces of any type), yet it's perplexing that some people
Horse hoof - Wikipedia
Most debris on the ground is not hazardous to bare feet — Born to Live Barefoot
Going barefoot Horse and Rider
The Hoof: Shoeing and Trimming – Eclectic Horseman
Horse Withers: Anatomy, Care, and Common Issues
Equine Elegance
Learn To 'Read' the Marks in Your Horse's Hooves
Barefoot Trim Bar Trimming - Okanagan School of Natural Hoof Care
What About The Hinds? - Shoeing the Powerhouse
Horses Sans Shoes: The Facts on Bare Feet – The Horse
What bit me? - Cottage Life
A Picture Guide to the Different Parts of a Horse
Horses and Mud on Freezing Mornings — Snohomish Conservation District