Reviewed in this essay:  Mahmoud at the Toronto Fringe Festival (Tarragon Extra Space), 30 Bridgman Avenue, Toronto.  Remaining show-times: July 10 at 3:30 PM, July 11 at 11:00 PM, July 13 at 12:00 PM, July 14 at 8:45 PM. Tickets available online or at the door. It takes a special kind of performer to bring…