“The idea of debonair, highly intelligent, well-connected art thieves” is alluring and makes for good movies, but the reality is far different, experts say. “Most art thieves fall into four categories: political activists who steal to make a point; ransom specialists who say they will destroy a work unless they are paid; small-time crooks who do not realise how hard it is to sell an easily identifiable painting; and – statistically the most likely – the mentally disturbed.”