Brady believes that he's found some bargains in a South London junk shop, but after spending £30 of his team's cash, the shopkeeper reveals that the 33-year-old has made a major error of judgement.
Watch a clip from this week's Apprentice
After Brady, Adam Corbally and Katie Wright have left the shop, the shopkeeper tells the cameras: "They didn't do very well. There's a lot of stuff here that would have made them a lot of profit. And they've missed every single piece... They picked absolute rubbish."
The shop owner admits that the trio have bought chairs which are not even worth their cost in scrap.
However, Brady is totally unaware of his blunder, claiming that he could teach the shopkeeper some lessons about sales. "He should pull all his stuff out and start again," says Brady. "We've taken all the good stuff."
The Apprentice airs on Wednesday at 9pm on BBC One.
> 'Apprentice' fired candidate Michael Copp says Ricky Martin is 'acting'
> 'The Apprentice' review: 'The best recovery since Dunkirk'
