pickett. >> i got on at seventh and market. >> as the bus winds it way through the philadelphia streets, pickett notices the little boy. >> he was running up and down the aisle. >> pickett says he hears the mom tell the young boy to sit down. >> and she begins spanking him like he was some sort of animal. >> pickett leans forward and reprimands the young mom. >> and i said, he's a child, let him be a child. you shouldn't be spanking him like that. if you continue to do that, i'm going to turn you in for child endangerment. she was like, you don't know me. this is my son. i will deal with him any way i choose to. >> for whatever reason, he offers his unsolicited parenting advice, he's just a little boy, that's child abuse. >> philadelphia native joe slabojen is a veteran staff writer for "the philadelphia inquirer." over his 30-year career of following court cases, he thought he'd seen it all until he watches the footage captured by septa security cameras that day. >> she is seen on there makin