There’s never a good time or place to go on an anti-gay tirade, but onstage at a club in San Francisco owned by a gay man, in front of many gay fans, is probably near the bottom of the list. Michelle Shocked, a singer-songwriter whose sexuality was once fairly ambiguous, stunned fans Sunday night at Yoshi’s Jazz Club with a homophobic rant, according to USA Today. The 51-year-old singer reportedly said that if California’s Proposition 8, which effectively bans gay marriage, is overturned, “it will be the downfall of civilization, and Jesus will come back.” As her rant went on,...