The big city drama unfolded on the Wilson Red Line "L" platform, 4620 North Broadway, while several people were waiting at the North Side Uptown neighborhood train station.
Apparently, a male passenger told a female passenger's son to stop banging on CTA's property.
The child's loudmouthed mother flipped out and told the man to stop talking to her son.
"You better not say nothing else to my child," screamed the angry momma.
"I'm gonna say what the fuck I wanna say," replied the male passenger. "Teach your son the right way! Teach your son don't destroy no fucking property! Your son is being ignorant!"
As more heated words were being exchanged, the shining example of motherhood threatened to push the opinionated citizen onto the train tracks.