Imagine If the Grammar Was (Were?) Wrong

Wildest story of the day:  Man walks into Teacher's Commission office in Oregon and places a pressure cooker bomb (a la Boston blast on a desk) with wire sticking out of it on a desk and complains that he had just tried to blow up sign outside and bomb didn't work.  He said he was mad about an education office having a sign outside with a typo or missing letter:  "an" instead of "and."  So what kind of education could kids be getting? Then he complained that the instructions he's downloaded for bomb also had typos or errors.   Then he walked out, carrying bomb with him.  He was arrested a bit later, with his non-working bomb.