Kum & Go founder Bill Krause, left, and his son Kyle Krause, President and CEO of Kum & Go, right, talk with Jim Sanders city administrator for the city of Johnston after a groundbreaking ceremony on Kum & Go's first LEED convenience store in Johnston on Sept. 3, 2008. Justin Hayworth/Des Moines Regis

Kyle Krause, then CEO of Krause Gentle, during an interview with Des Moines Register reporter Jeff Eckhoff on April 15, 2010. BILL NEIBERGALL/DES MOINES REGISTER

Kum & Go leadership, from left, Kyle Krause, president and CEO, Bill Krause, co-founder and chairman, and Kevin Krause, senior vice president of marketing, at the company's 50th anniversary celebration 2009. Renda Lutz/The Des Moines Register

Bill Krause, former owner of Kum & Go stores, recounts a story told to him of falling

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