Have you ever tried to put yourself to sleep by tuning in to a radio broadcast of a local school board meeting and been jolted from slumber by a whining, irascible voice decrying recent efforts to outlaw exotic animals in the burbs? That's Alan Rigerman. He's a gadfly, perhaps the greatest ever. Definitions of the word are sketchy. In one iteration, it refers to a cattle-biting insect. When applied to people, it's defined as "a persistent annoying person" or "one that acts as a provocative stimulus." Rigerman walks the line between those two. He has participated in a class-action lawsuit against the big, bad rock miners who blast around his back yard. But he has also choked newspapers and voicemail boxes with an unholy payload of rambling pontification. He lives with two cougars, a porcupine, and scores of snakes. The guy is one of South Florida's true gems. Just don't get stuck in an elevator with him.