This is a picture of my Border Collie's hip. After 5 years of harassing the horses (read: trying to make them go where they don't want to go), and 36 kicks, plus a stabbing by the front feet of Tucker, one of the horses finally got his teeth on him.
Boots is stone deaf as a result of the kicks, so probably didn't hear the horse coming. By the looks of it, the horse grabbed him and shook him. The bald patch is about 4 inches in diameter. Other than the big blood blister, no damage was done.
All the moisure in the hair was melting snow.
I say "ouch" 'cause Biz got her teeth on me, just above the belt shortly after we got her. She didn't do it again! She got elbowed hard in the neck within the 3 second time allowed. Beyond 3 seconds, horses apparently don't know why they were punished.
I suspect the herbivore turned carnivore was likely Tucker as she has a short fuse when it comes to annoying type dogs.