During my visit to Berkshire Hathaway’s annual meeting in Omaha, Warren Buffett and I broke away from the meetings to visit a Dairy Queen for some lunch and to get some restaurant training. We learned how to work the cash register, greet guests, and make a Blizzard (including the proper way to serve it, “Always upside down with a smile.”). Learn more at https://b-gat.es/2KdA96E