I had just opened a can of Pepsi when I heard the front door slam and my sister Sara mumbling to herself. I walked into the living room to see Sara in a pair of black leggings and a "vintage" Sex Pistols t-shirt sitting on the couch looking pissed at the world. "Bad date?" I asked, taking a sip of my drink.  "Fuck you!" she snapped.  "Whoa, easy there, little girl." "Fuck you!  Fuck him!  And fuck every guy in the world."...