Charlie Bronson has spent 28 of the last 30 years in solitary confinement. He has been locked in dungeons, in iron boxes concreted into the middle of cells and, famously, in a cage. When his is unlocked, up to 12 prison officers are standing by.
Yet this is a man of great warmth and humour who has never killed anyone and has often dealth with his gruelling life with humour - during a siege in 1993 he demanded an inflatable doll and a cup of tea.