There is no Shannon, only Zuul. Happy Halloween! As promised, here are our costumes. From one of our favorite classic 80's flicks, Ghostbusters. You get it, right? Please say you do. At the parties we attended, most people hadn't a clue. It pains me to have to explain, but if you're at a loss, I'm Sigourney Weaver's character, Dana Barrett, possessed by the demon Zuul, aka the Gatekeeper, who searches for the Keymaster, played by Rick Moranis. Together, they prepared for the coming of Gozer…