When much of the city of Gary, Indiana, lost power after a devastating storm last week, Jimmy Hendricks didn’t wait for the power to come back on at his iconic restaurant, Koney King. Instead, he went out and bought a $1,300 generator that same day.

In the days that followed, he’d wake up in the middle of the night to fill gas cans to power the generator because the gas station lines were too long during the day. He managed to keep his restaurant open during its usual business hours despite the lack of power.

His quick thinking paid off. Koney King, which serves hot dogs and burgers, did not get power back until a week later. He said it was…