Meet the self-described knucklehead and only man to have invited over 400 million people to dinner, Chuck Templeton. Founder of Opentable, the world's leading provider of restaurant reservations, Chuck's entrepreneurial spirit has taken him from waiting tables to redefining the restaurant industry. Now chairman of white hot Chicago food delivery start-up Grub Hub and actively involved in a number of other high-growth enterprises devoted to social good, Chuck talks with Farmhouse about driving his passion.