Mayor Rudy Hopkins is not playing. Not only does the new man-in-charge dump vervain into the town’s water supply in The Vampire Diaries Season 4, Episode 12, “A View To a Kill,” he puts Mystic Falls on lockdown by reinstating a curfew and canceling all public events — including the ‘80s dance. Basically dude takes all the life-saving advice we’ve been giving for the last two seasons. But we’ll get to that in a bit. The episode opens with Stefan...