Who knew? Apparently there is such a thing as a second-hand heroin high. Amy Winehouse's tour manager, Thom Stone, has quit, fed up after a doctor found traces of heroin ("known as 'smack,'" The Sun notes helpfully) in his system. Stone alleges he inhaled the drug passively on Amy's tour bus. But in defense of our favorite beehive, isn't is possible Mr. Stone just had a heavily poppy-seeded bagel that morning?