Shark Tank’s Barbara Corcoran says one trait tells her instantly whether an entrepreneur will flop or succeed—if you do this, you’ll 'lose my money'

Barbara Corcoran on top of the Empire State Building (Credit: John Nacion/Getty Images for for Empire State Realty Trust)

Barbara Corcoran may be best known for her 17 seasons on Shark Tank, but the real estate mogul—who sold her company for $66 million in 2001—says one trait tells her instantly whether an entrepreneur will flop or succeed.

“I pay close attention to who takes responsibility and who plays the blame game,” Corcoran told the Wake-Up Call at Work newsletter.