It's like talking to a brick wall

Colonel Brighton:

Lawrence will campaign this winter, but you have got what you wanted so you're going home. Is that it? Auda abu Tayi:
Of course. When Orens has got what he wanted, he will go home. When you have got what you wanted, you will go home. Colonel Brighton:
Oh no I shan't Auda. Auda abu Tayi:
Then you are a fool. Colonel Brighton:
Maybe, but I'm not a deserter. Auda abu Tayi:
Be thankful that when God made you a fool, he gave you a fool's face. Colonel Brighton:
You are an impudent rascal. Auda abu Tayi:
I must go, Orens, before I soul myself with a fool's blood. Colonel Brighton:
It's like talking to a brick wall