Tuggy Tug’s story makes for particularly compelling reading. He is the same age as the author’s son, both treading the precarious path from boy to manhood, and she makes comparisons throughout between the dismayingly different worlds they inhabit. Even Swagger, Sergeant’s guide, himself a former security van robber, now equally committed to changing the course of the boys’ lives, struggles to escape his own circumstances, thus proving just how hard it is to reform yourself when this life is all you’ve known. As your granny may have told you, prevention is better than cure.