The human brain is wired in such a way that we are constantly making connections with out even realizing it. Perhaps thats why proofreading can bee such a dificult task for non nerds. Even proofreaders brains can switch too auto-pilot, and we can loose our normally meticulous focus. Spelling errors, typo's, punctuation mistakes and an over reliance on technology have all resulted in some pretty serious proofreading disasters. Smarty pants like us sea these "fails" and shake are heads wondering, "How did no one notice that"?