Rule.
If you want one web address, but accidentally type in another, you get porn.
If you want one 800 number, but accidentally punch another, you get porn.

Porn is lurking around every false turn in the Land of Communication. (I'd originally typed "nook and cranny" and not "false turn," there, but contextually, that makes no sense. Nook and cranny sounds way more pornlike, too.

There's something terribly wrong with me.)