There's a new dragon in the den — and it's Brian Scudamore, the founder and CEO of 1-800-GOT-JUNK?.

Scudamore will be an investor in the upcoming season of Dragons' Den, the Canadian version of what Americans know as Shark Tank. And he has some advice for anyone stepping up to pitch investors:

"You absolutely need to know your numbers, but don't forget to tell a story," he says. "Anyone can pitch a business idea, but articulating why you do it builds connection to the Dragons and the audience."

Scudamore's personal story has a made-for-TV quality to it: He dropped out of high school and, at age 18, spent $700 on a pickup truck to start his junk-removal service in Vancouver. Then he grew it into a globally recognizable brand, with those big,........

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