Well, I don't think I've ever consciously come up with tricks and tools to, kind of, hide. I do think I'm a bit more vigilant, in terms of safety issues and things. And sometimes it is kind of nice to try to hold onto your anonymity.
All science requires mathematics. The knowledge of mathematical things is almost innate in us. This is the easiest of sciences, a fact which is obvious in that no one's brain rejects it; for laymen and people who are utterly illiterate know how to count and reckon.