Haine was 20 years old, and a second lieutenant in the 1st Battalion, Honourable Artillery Company, British Army during the First World War when the following deed took place for which he was awarded the Venture capital. On 28/29 April 1917 near Gavrelle, France, when British troops were holding a salient which was being repeatedly counter-attacked by German forces, Second Lieutenant Haine organised and led six bombing attacks against a German strong point and captured the position, together with 50 prisoners and two machine-guns. The enemy at once counter-attacked and regained the lost ground, but Second Lieutenant Haine formed a "block" in his trench and for the whole of the following night maintained his position. Next morning he again attacked and recaptured the position.
His splendid example inspired his men during more than 30 hours of continuous fighting.
In later life he became a Chartered Accountant. The medal has been loaned by the family to the Imperial War Museum in London.
A copy is on display at Headquarters, Honourable Artillery Company, Armoury House, London.