via www.scientificamerican.com/

The first case study appeared in 2002 in the journal Sexual Abuse and documented the story of a low-IQ’ed, antisocial, fifty-four-year-old convict who had a strong sexual interest in horses. In fact, this was why he was in prison for the fourth time on related offenses; in the latest incident, he had cruelly killed a mare out of jealousy because he thought she’d been giving eyes to a certain stallion. (You thought you had issues.)

Words fail me.