When a restaurant messes up your order, what do you do?

That answer could determine whether you get a job at Charles Schwab, CEO Walt Bettinger has revealed.

Before taking job candidates on a breakfast interview, Bettinger shows up early and asks the restaurant to purposely mess up the order, with the promise of a good tip in exchange.

Charles Schwab CEO Walt Bettinger has revealed that when he takes a job candidate to a breakfast interview, he purposely asks the restaurant to mess up their order to see how they respond

Bettinger says that he's most concerned about a prospective employee's character, and this is a test to see how they deal with adversity, he told the New York Times.

'Are they upset, are they frustrated, or are they understanding? Life is like that, and business is like that,' he explained.

'It's just another way to look inside their heart rather than their head.'

And the heart is what Bettinger is trying to understand, asking candidates about their greatest successes in life before he offers them a job at the brokerage and banking company.

'What I'm looking for is whether their view of the world really revolves around others, or whether it revolves around them,' he said.

'And I'll ask then about their greatest failures in their life and see whether they own them or whether they were somebody else's fault.'

Bettinger revealed in the same interview that it was one of his last college exams, which ruined his perfect 4.0 average, that reminded him how important it was to recognize the people 'who do the real work'.

Bettinger said when he is always trying to learn about what is in a prospective employee's heart, rather than their head, before offering them a job at Charles Schwab (pictured is the San Francisco building)

After spending hours memorizing formulas for calculations, a young Bettinger showed up to find that the text was merely a blank sheet of paper.

'The professor said, "I've taught you everything I can teach you about business in the last 10 weeks.'

'But the most important message, the most important question, is this: What's the name of the lady who cleans this building?'

Bettinger didn't know. He failed and got a B in the class.

'That had a powerful impact,' he said. 'Her name was Dottie, and I didn't know Dottie. I'd seen her, but I'd never taken the time to ask her name.'