Scares off a bunch of guards with a roar

Guan Yu sealed and sent it to the palace. Then he deposited in the treasury of his dwelling all the gold and silver he had received, hung his seal of lordship of Hanshou in the middle of the reception hall and left, taking his sisters-in-law with him in a carriage. He rode Red Hare and carried the green-dragon saber in his hand. With a small escort of guards, those formerly under his command, he left the city by the north gate.

The wardens would have stopped him, but Guan Yu frightened them with a fierce shout. Having got out, he told the escort to go in front with the carriage while he would remain behind to guard against pursuit. So they pushed the carriage toward the high road (Romance of the Three Kingdoms, Ch 26).