After Amanat Anand and Shubham Issar leave the tank without an offer from the Sharks for their kid's soap product, Soapen, guest Shark Nirav Tolia tells Mark Cuban he thinks he may have made a mistake. He chases them down the hallway and proposes a deal. From 'Shark Tank' season 13, episode 4. Watch 'Shark Tank' FRIDAYS 8/7c on ABC. Stream on Hulu.