An addition to Rule 36, this rule states that, if there is a fetish for anything, then therefore anything must be porn, at least to someone. To simplify: It is not necessary for a subject to contain sexual content in order to be classified as "porn", according to Rule 36. To simplify further: Everything is porn.
Person 1: Man, the internet is crazy. I bet there's even Holocaust porn out there.
Person 2: To someone, the Holocaust already is porn.