Dragons' Den panellist Theo Paphitis told a Norwood audience how a contestant on the BBC show swindled him out of £80,000.
Credited with turning round failing chains including Ryman and La Senza, the Cyprus-born entrepreneur held court on a variety of business issues before a breakfast audience of 200 at a central London hotel.
Mr Paphitis - who has five children with his Jewish wife Debbie - was interviewed by Norwood trustee Neville Kahn.They discussed everything from why companies should encourage charity work and the prospects for small businesses to the battle for the post-Games use of the Olympic Stadium.
He also recalled how he and fellow Dragon Peter Jones had been "absolutely legged over" by one contestant.