This is a story a guy I know told me about his grandfather.
The grandfather was a successful financier who prided himself on getting in on the ground floor of moneymaking opportunities. One day, he met Edwin Land, the inventor of the, then, revolutionary Polaroid camera.
Excited by a conversation with the inventor, my friend's grandfather was certain he could make a killing in the stock market by investing early in Land’s company.
Before leaving on an extended vacation to Europe, the grandfather left an urgent message for his secretary. The message said:
When he returned from his vacation, sitting outside the door of his apartment was a brand new Polaroid camera.