The young J.D. Vance was used to the melodramas surrounding his mother, Beverly Vance, with her addictions to painkillers, heroin and alcohol, as well as the chaos caused by her five marriages and countless live-in boyfriends.
But his mother was trying to steer a car during one pivotal clash with Bonnie Blanton Vance, the matriarch known to all as 'Mamaw.'
'There was a lot of screaming, some punchin…