The key debate on the subject is whether the animal finds the experience harmful in any way, or, conversely if they actually find it pleasurable. Islam, however, has no specific prohibitions against such acts and, in practice, Islamic countries have been lenient in punishing those found to be engaging in them, provided the animal is not harmed. A widely publicised documentary by Vice , subtly titled Animal Fuckers, focused on the sexual exploits of two Danish citizens, both of whom lived in urban areas and regularly engaged in sexual intercourse with animals. Both male and female animals can be involved depending on the preferences of the human regarding penetrating, or being penetrated. Eventually cysts will begin to grow in the liver, brain and lungs, as well as other organs. Virtually all countries have laws against cruelty to animals and most arguments for the criminalisation of zoophilia are centred around the fact that it causes pain, both physical and mental, to the animals and is thus clearly illegal under the aforementioned laws. How people come to develop paraphilias is a matter of debate, with both genetic and environmental causes being posited. In News24 reported on the case of a Pretoria woman found guilty of having sex with two dogs. As a result of the publicity the trial received, the state of Washington outlawed humans having sex with animals early the following year. One of the most famous cases is the so-called Enumclaw horse sex case in which a 45 year-old man died after receiving anal sex from a stallion. Present in the saliva of cats, dogs and horses, rabies is probably the most severe disease a zoophile can catch. Not just dangerous, but deadly Outside of the direct pain caused by sex between two mismatched species, though, there are several other ways in which zoophilic activities can have negative effects on the animal and the human. There is little in the way of support for the latter, either in legal or social realms. Humans having sex with animals is called bestiality, and it isn't nearly as rare as you might think. Some prominent activists go as far as to say that animals actually derive sexual pleasure from the experience and that this effectively negates any claims of animal cruelty. This happened in , and the victim was an aerospace engineer for Boeing. Estimates of prevalence vary, but by any estimation the numbers are still substantial.