4. DIY Pest Removal
Don't we all hate those annoying ants/cockroaches/rats living under your floor? All of them running amuck in your house, throwing parties while you sleep, all while not even contributing to the rent. If only there was a sure-fire way to get rid of them. See, pest-removal services cost a pretty dime, but a single .50 BMG 12.7x99mm NATO round will only set you back a few bucks.
So lets say you have rats and they've been running around excreting their feces everywhere, smearing as much as they can on your couch, and you know where their nest is located. Would you rather get on all fours with a broom in hand, or fire a single .50 caliber bullet into the wall, effectively destroying the entire nest with everything in it. Those rats are going be too busy being dead, to be coming back anytime soon.
"What rats?"