It was once quite a challenge to be controversial. During the blood-soaked Dark Ages, for example, any ruler without a triple-figure kill count to his name would have been written off as an also-ran. It was almost as difficult to stand out in the Wild West, where murders were daily events. Even judicial executions in error drew little notice. The saddest grave marker in Tombstone, Arizona’s Boot Hill cemetery simply reads: “Here lies George Johnson hanged by mistake 1882. He was right we was wrong. But we strung him up and now he’s gone.” Your various punk bands, the Sex…