While watching Tombstone, line up shots of whiskey. Every time that Doc Holiday takes a shot, you must take a shot. About 30 minutes into the movie you can see the true poetry behind Doc's drunken speech. Continue this process till you are bombed out of your goard.
Variation: If you only have beer to drink with, line up the same shots with beer. Drink not only when Doc drinks, but also when they say Earp or any one dies.