Theatre: Two Irishmen walk into a bar . . . An Irish Joke , from the writings of Flann O’Brien, is a play about three buddies who share a few after- hours drinks while evading the law. With Ian Curry, John Kelly, Nick Martin, Nathan Porteus. Part of the Adelaide Fringe. Talbot Hotel, March 15 and 17. Bookings: 1300 Fringe.