They were in the taxi queue at Dublin’s College Green, a man and woman, both drunk and stuffing their faces with fast food. When they had enough in their bellies, they tossed the remains of the food and wrappings away onto the street. Two friends of mine were behind them in the queue and, you might say, gave them the hairy eyeball. The drunken woman reared up on them. “Watch yourselves,” she snarled, “I’m a Guard and he’s a Guard as well”…