Google is the one whose X-rated product directory turned up even when the searcher turned on "moderate filtering." On the other hand, say "spit happens" to most any man in the 18-to-34 year old demographic, and you'll either get a jovial fist bump or a politely restrained grimace. The phrase hardly connotes innocence. And the algorithm tries to give the people what they want. Maybe Google knows something you don't?