A very smartly uniformed Sergeant Major in the British army strides briskly up to the door of a brothel. Knocks sharply on the door with his swagger stick.
The Madame opens the door, and very impressed with the smartly uniformed officer , asks "What can I do for you, handsome ?"
SM replies, "How much for the pleasure of my company ?"
Madame thinks this is a strange way to phrase the proposition, but the customer is always right, so she says "I can provide a lovely girl for £20 dearie".
Sergeant Major says brusquely "Right you are then" . He takes two steps back and shouts "Comany double time, enter the brothel"