No I'm not kidding, this actually happened. Don't believe me? See for yourself.
http://www.news.com.au/couriermail/story/0,23739,26587307-5013016,00.html
Vets believe this was the result of a poor diet but apparently a similar thing happened to a goat last year when a man had a.... *cough* "Inappropiate relation" with a goat. Perhaps they're hinting it could be a similar case with this.
I mean come on, "poor diet"? Will I have a child born with a lions tail if I don't eat enough vegetables?.... actually that sounds pretty awesome.