This Is Why You Don’t Scold People on the Subway

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Photo: Mario Tama/Getty Images

That woman who complained about those teens eating spaghetti on the subway got off easy: Today on the 3 train, a homeless man stabbed a woman in the head with a pen/pencil (reports differ) after they got into an argument because he was smoking a cigarette. The woman is okay, and learned something she probably should have already known — namely, that a homeless person already exhibiting abnormal, antisocial behavior may not have the most levelheaded reaction to criticism from a stranger. [NYDN, NBC New York]