From Investors.com: Nine-year-old Bill Rosenberg knew his sales pitch didn't work.
The question was, what would?
On a hot summer day in 1925, he was trying to sell watermelons in front of his dad's Boston grocery for 50 cents each. He had to get rid of the watermelons before they went bad. Passers-by weren't buying.
It was time for a different approach, he recalled in his autobiography, "Time to Make the Donuts", about how he built his Dunkin' Donuts empire.