http://www.all-the-other-names-were-taken.com/tipstips.html "To combat this menace, we've instituted Operation TIPS-TIPS. If you spot somebody you believe may be a TIPS informant, do two things: Mark the informant. In a subtle way, place the mark of the all-seeing eye (the eye-in-the-pyramid from the Great Seal, shown above) on their home, vehicle or person. Chalk is best, though it must be renewed. This is like Hobo Signs. Register them here."