Right now, you only need take Mervyn King's advice on an out group who everybody knows to hate and nail them; not just for being to blame for wrecking the economy, but also for not paying their fair share. Look at corporate tax rates, look at the avoidance of tax in havens.

Point out how little they pay for the money they charge interest at high rates for others to borrow. Why is paying tax for the little people ? Why is austerity only for little people ?

Anything more complicated gets lost in noise.

keep to the Fen Causeway