O.K. first thing you do is grab both ears firmly. Pull very hard but evenly on both ears. When you hear a loud pop, that is your head coming out of your a$$. Why I didn't do a search first is beyound me. I guess I am trying to brush up my typing.
You can do it through the fuel rail but that is slow and still leaves about a gallon left in the tank. Add a drain plug to you gas tank is the only way to get it all out, and quickly.