"The object of this competition is not to be mean to the losers but to find a winner. The process makes you mean because you get frustrated. Kids turn up unrehearsed, wearing the wrong clothes, singing out of tune and you can either say, "Good job" and patronize them or tell them the truth, and sometimes the truth is perceived as mean."

"If I said to most of the people who auditioned, 'Good job, awesome, well done,' it would have made me actually look and feel ridiculous. It's quite obvious most of the people who turned up for this audition were hopeless."

"I honestly can't ever imagine retiring because I don't know what else I would do - even when I'm on holiday, 70% of the time I'm working. I think I'd like to go out on the job so, ideally, 'And the winner is... Ooooh, and he's gone!' ""

"Every time I sat in a chemistry lesson, I thought, 'What am I doing this for? I don't ever want to be in a job that involves a Bunsen burner.'"

"I was so tired, wasn't having fun any more, and wasn't sure if I wanted to do this any longer. So I turned my phone off and sorted my head out. It was the opposite of a breakdown really, it was a break-up - I got rid of all the idiots, realised my job was supposed to be fun, and got on with my life."

"It's the government's job to encourage entrepreneurialism and investment. Most importantly, it's the government's duty to inspire confidence."