You’ve heard the old saying: “If only these walls could talk, what a story they could tell.”Same applies to Mike Perez, who just retired as Weslaco’s city manager. All told, Perez has more than 40 years spent as city manager — Mercedes, Harlingen, McAllen, and Weslaco.Forty-four years spent dealing with elected officials, including almost five serving under McAllen’s iconic, unconventional Othal Brand, how many interesting stories does Perez have stored in that head of his, mainly collected behind closed doors in executive session?Enough to probably fill a three-volume book.Just the stories alone about the battles behind closed doors that must ...