Robert Herjavec and Kevin O'Leary used a SiriusXM interview to air a long-running disagreement about how far criticism should go during Shark Tank pitches.
Speaking on the October 9 episode of The Business Briefing with Janet Alvarez, the two investors described conflicts that sometimes feel far from scripted.
Herjavec, 64, said some clashes are genuine, while O'Leary, 72, defended his demanding style toward entrepreneurs.
Real Tension Behind the Pitches
Herjavec recalled a major argument involving fellow investor Mark Cuban that became intense enough for them to leave the stage.
He said such disagreements arise during real discussions about business pitches and investments.
"We went to a huge argument where [Mark] Cuban and I actually left the stage," Herjavec said.
According to Herjavec, viewers sometimes assume the show's conflicts are staged, but he said the reactions come from genuine moments during filming.
"When we're in the moment, it's very real," he said.
Herjavec said his concern centers on how O'Leary treats entrepreneurs during pitches, arguing that criticism should focus on business ideas rather than individuals.
"My issue is, sometimes Kevin goes too far," Herjavec said.
O'Leary Rejects the Idea of Limits
O'Leary rejected the suggestion that his approach exceeds acceptable limits.
He said entrepreneurs must handle pressure and difficult questions before entering the business world.
"There's no too far," O'Leary said.
O'Leary said his comments are directed at proposals rather than the people presenting them.
"I insult their idea, not them personally," he said.
He argued that harsh feedback can prepare founders for challenges outside the show, and that entrepreneurs who cannot handle demanding questions may struggle in business environments.
O'Leary also discussed his preference for founders who return after learning from previous setbacks.
"I like to invest in the ones that come back," he said.
Daniel Lubetzky, another Shark Tank investor, highlighted a different part of the program's appeal, pointing to innovation and creativity from entrepreneurs appearing on the show.
"The reason people turn to the show is because, look at the innovation and creativity," Lubetzky said.
"How people turn all the problems into solutions. Literally, you go to Shark Tank to get that inspiration," he said.
