....a horse.
Leeroy Le Gallais, 46, broke into the animal's stable on two separate occasions to perform sex acts on the terrified animal.
During his first attack he used a bucket to stand behind the horse, called Calico, but was caught after leaving his underwear at the scene.
(more info)
The thing that I don't get is why is it illeagal? I mean, you get vids of these kind of things all over the internet. Either way, I find it sick.