Scenario: Ok, the grid's been down for almost six months now. Society as we know it has completely broken down, even martial law failed. Life-threatening crime is a daily fact of life.
And you have an abscessed tooth.
Dentists? If they weren't murdered, like so many other people, then they're hunkered down somewhere just like you.
But you're a macho guy or a really butch babe and you're ready to give yourself a root canal. What's it gonna take to git you through it?