Melanie unleashes the fury and Joan is on the receiving end in Sunday's Fair City on RTÉ One and the RTÉ Player.
She lets fly after being scolded for a small mistake by her boss.
"I mean, you had one job," says Joan.
"One job?!" shouts Melanie. "Are you trying to be funny?!"
"Pardon?" says Joan.
"I was busy enough with my own work," Melanie replies. "And then you send me off in a cab chasing paperwork when all I want to do is shift this never-ending pile of crap off my desk! One job, Joan?!"
"Melanie, we are all busy," says Joan, raising her voice.
"No, look at me - look at me!" Melanie continues. "I am one person. I have had it with you, Joan! Do you hear me?!"
Fans can watch what happens next on Sunday on RTÉ One and the RTÉ Player at 8:30pm.
Fair City airs on RTÉ One and the RTÉ Player on Sundays, Tuesdays, Thursdays, and Fridays.
