When I was a young boy I learned that you could shoot a man for disrespecting your sister, even if he was her husband and your brother in law.  All you had to do was trick your kids into believing the weapon was a cap gun by putting caps in the hammer, before you fired into the night air at the man who’d limp for the rest of his life for reasons unbeknown to me.  That’s what my father did.  My brother tells me years later that the fake cap gun is the reason why my uncle limps like he does.