Now here’s some good advice that is basically self defence 101.
“Exactly right,” I said, “Carrying a gun won’t do you any good if you don’t pay attention. The first thing you have to do is realize you live in a bad neighborhood.”
“No I don’t,” he answered. “It’s the Old City. It’s well lit and…”
“Your roommate was robbed at gunpoint at your front door. You live in a bad neighborhood.”
“It’s not that bad! There are lots of people who live down here and…”
“One more time. You live next to the railroad tracks. Have you ever heard of anything good happening by the railroad tracks?”
Go read the whole thing. Nice, practical advice.