Downtown Sarasota. I found a parking space at Island Park and we headed for O’Leary’s, a favorite spot on the bay, a waterfront bistro with picnic tables and live music. Pat ordered a grouper sandwich, I went for fried shrimp. White wine for all. There was a grouper scandal a few years ago. So popular is the delectable Gulf aquatic chameleon that fake grouper, everything from tilapia to pollock, was being passed off as the real thing in restaurants all over Florida. Eventually the State Attorney General’s office, following a St. Petersburg Times expose', began randomly testing grouper sandwich DNA. A lot of restaurants, who blamed their suppliers, got snagged in the Groupergate net. Authenticity has since dramatically risen, along with grouper sandwich prices. If you’re paying $10. or more for one, there's a good chance it's grouper. At one of our favorite seafood spots we noticed an offering, on the post-Groupergate menu: a “grouper-like sandwich.” I offered Pat a cur...