Prominent restaurateur Paul Fleming’s secret sauce? Worry. But be flawless.

Even after almost four decades in the restaurant business, even after building and growing notable successful national chains like Fleming’s Steakhouse and P.F. Chang’s, and even with the wisdom of being 68 years old, when Naples restaurateur Paul Fleming is asked what keeps him up at night about his latest concept, PJK Neighborhood Chinese, he answers flatly, “it’s everything.”

Fleming’s Paul Fleming Restaurants, which he operates with his wife, Jody Goodenough-Fleming, opened PJK, at 835 Fourth Ave. S. in Naples, March 14. The worries have since come like a persistent faucet drip: Are reservations up or down? Is the staff working well together? Is food preparation on time and consistent? Are customers happy? Do they get the concept? Is there red tide at the beach? Will rain keep people away? And on.