One more instance of The Law Of The Too Solid Goof: In any collection of data, the figures that are obviously correct beyond all need of checking contain the er

One more instance of The Law Of The Too Solid Goof: In any collection of data, the figures that are obviously correct beyond all need of checking contain the errors. Corollary 1: No one you ask for help will see the error either. Corollary 2: Any nagging intruder, who stops by with unsought advice, will spot it immediately.