A gun convinced Markus Villig that he was in the wrong business. It was 2015, and the then-21-year-old founder of Bolt was in Belgrade, Serbia, pitching a local taxicab capo on using his app as a digital dispatcher for drivers. The revolver casually left on the boss’s desk sent a clear message: These were rough customers in a brutal business. Villig, who had cofounded Bolt with his older brother Martin two years earlier, was suddenly sure he wanted nothing to do with them. “These were not very nice people to try to do business with,” he recalls.
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