Interesting quote in one of the comments. Basically the assertion that zoophilia is mentally healthy with different values. How I see it. The fetishists and "tabooos" I believe view animals as just a toy to get off on, quite the opposite.
"If you think an animal has less value than a human and you have sex then it is by psychiatrists considered an abuseIf you think animal has same value as a human and you have sex then it is out of perverted sense of appreciation and love which is not a real diagnosis therefore your are actually mentally healthy with different values"
But yea, don't think you wont the lottery if some stranger here offers up their dog for sex. Could be a sting.