This guy turned his failure on 'Shark Tank' into a $28 million investment from Richard Branson

In September 2013, Jamie Siminoff went on ABC's "Shark Tank" in hopes of raising $700,000 for his company, DoorBot. He thought it was worth $7 million.

His company made a video doorbell that connected to your smartphone, so you could remotely see and talk to the person at the door through your mobile device.

The idea was largely based on the fact that burglars tend to ring the bell before breaking in. With DoorBot, you could see who is at the door and even pretend you're at home when you're not, making it a convenient home-security device.

Siminoff was already making about $1 million in annual sales then, and he had high hopes of getting one of the TV show's "sharks" in as investors of his company.

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