Lord Sugar said nothing as he left an employment tribunal in which the 2010 winner of his TV series The Apprentice is trying to sue him for constructive dismissal.
Lord Sugar has accused one of his Apprentice winners of lying and taking him to a tribunal "to extract money". Stella English won the TV show in 2010, but is suing the businessman for constructive dismissal.
ITV News UK Reporter Sejal Karia is at the East London Employment Tribunal.
During cross-examination today 2010 Apprentice winner Stella English was asked by Seamus Sweeney, representing Lord Sugar, why she did not complain to the millionaire business mogul about how she was treated.
She said: "I was in a trial period to win The Apprentice.
"What value is there in me going into a company I don't know - whether I knew (she was going to win) or not - and then go and complain about people who have been working there a long time?"
The tribunal also heard that Ms English later asked Lord Sugar about how to get media advice on doing some public speaking or writing a book as she needed to make some money as she was in debt.
Ms English, who took home £82,500 a year in her previous job working for a Japanese investment bank, said Lord Sugar told her it would be "better all round that you didn't walk out".
A new report has found that young people get more out of apprenticeships if they have some previous experience.
Ofsted discovered that those who had worked in that area before or who had carried out vocational study did better than those who started fresh from school.