The Agitator:

Why Skydivers Would Be Better Off Without Parachutes :

"The one explanation the researchers don't mention is the one that will occur first to defenders of the right to armed self-defense: Maybe people who anticipate violent confrontations—such as drug dealers, frequently robbed bodega owners, and women with angry ex-boyfriends—are especially likely to possess guns, just as people who jump out of airplanes are especially likely to possess parachutes."