Because life with horses is never orderly.
Story of my Life…
Maybe they see dead people?
..with Warmbloods anyway. The Beastlet is quite content to schlep around doing stretchy work or walking on a long rein–even with the million heavy trucks, cars, and motorcycles that rampage along the miniature highway next to our ring– without so much as even a glance. But pick him up and go to work and suddenly even the AIR is cause for spooking.