Including, or perhaps especially, barn cats.
One of the instructors brought a couple of rugs from her garage in the hope they might fit a couple of the horses.
Barn cat Maisie decided one of them was her New Favorite Cat Bed. No matter where we put that rug, within five seconds, there was a cat on it. I hope she doesn't do that when it's on a horse! (The horse might not appreciate it. Or they might. Depends on the horse).
In other news, we're bracing for some nasty-for-Virginia overnight lows here, but at least it's not going to be twenty below. We're still going to be under a wind chill advisory tomorrow. Maybe I can simply not go outside...