Zombies?

What would you do if there was a zombie outbreak?  Seriously.  What if an alien virus or possibly one produced her on earth (Swine Flu?) had the ability to infect the human race and turn us into blirdthirsty cannabalistic zombies?  How would you react and attempt to survive?  How do you think our government would react?  Zombies have become more and more prevelenet in the entertainment industry lately and it would be ironic if there actually were zombies at some point.  While the thought of such a dawning of the dead is both horrible and scary I feel it would be interesting and exhilarating to see how everyone reacted.  I think I would most likely venture to Walmart to buy a shotgun and a ton of ammo.  This always seems to work in the movies.  I would then proceed to drive away as far as possible and use the shotgun if the zombies got too close.  Gasoline and bombs might work well too or maybe a better idea would be to simply hide ina bunker and attempt to wait it out.  I can't say for sure but I know it would be completely insane.  Would society simply fall apart? Would there be looting and crime?  I feel that a zombie outbreak is more plausible than some horrible occurences and that at some point the evolution of some microscopic organism could possible reult in zombies everywhere...