If you're going to teach a girl to shoot without informing her how to properly hold the weapon, don't stand directly behind her, you may become a casualty of your own sophomoric stupidity.
Haven't you figured out WHO Cain is yet?
Read Genesis from Adam to Cain being driven from Eden until that figurative light bulb lights up over you head.
Pay close attention to the Mark of Cain and where on the body it could be seen.