I've just watched the superb Twelve Angry Men, a classic movie where Henry Fonda persuades a certain jury they shouldn't be quite so certain. Subtle and brilliant in the way it deals with the way we make up our mind about things, I hadn't watched it - though I could have done - at any time in the last thirty years, because as a teenager I'd seen the Tony Hancock comic version, which lampoons the whole thing and therefore made me disregard the original. The British boast that their their piss taking humour reveals the reality behind the 'hypocritical' veil so often drawn across life. But what if piss taking actually covers up truth?