Shameless stolen from Tam, whose snark never fails to get her on base. This is a homerun and worth passing around.
It occurs to me that some newer readers may not be up on the entire "Taxonomy of Modern Dangers" thing, so as a recap, here are several good reasons to carry a gun:
Zombies (of course)
Killer space robots
Hippies (generally peaceful, but can become erratic and dangerous during mating season)
Various hybrids of the above, such as zombie bears or ninja vampires
Remember: If you are prepared for the dead to walk the earth in search of human brains, then a hurricane or attempted mugging is no big deal.
Isn't this well spoken truth awesome? The only thing I can think to add is clowns.