 As his first name was Robert, this habit is sometimes said to have given rise to the popular expression 'Bob's your uncle' (meaning roughly 'It's all right, everything is sure to come off').During World War II, Hatfield House was the location of the first Civil Resettlement Unit and acted as headquarters for the scheme.CRUs were created to help repatriated British prisoners of war transition back to civilian life and the luxurious setting of Hatfield was considered very beneficial to these men.