I just realized this thread is 5 years old. Oops.
Sorry, not sure how that happened...
I think the most important thing to remember here is Humans.
If we're talking survival, he's probably not already bunkered down.
It's more likely that some bigger issue has occurred and he will need to get
away from people before the campfires and animal snares can even begin.
If it's bad enough that you know it, and are leaving home, then others
probably will know as well. The more desperate people get, the worse
they will be. People may help you change a flat on the side of the road
and smile that they got to help someone, in an ideal situation. But if they're
scared and desperate don't doubt that they'll do ANYTHING if they think
it will benefit their situation. It would really suck to spend hundreds, even
thousands on survival gear, only to have some punk teen, who stole his
grandmothers cheap .38 pistol, mug you for all of your gear before you get
out of your own neighborhood. We're all human, and thus mortal, but
I'd at least like to try and fight back. Besides, if you're a member here,
I'm gonna step out on a limb and say that you probably already have a
knife or ten. It did sound in your op that you implied you already have
at least one "hard use" knife.
Anyway, just my $.02. Take what you will.