When Rushton’s book Race, Evolution and Behaviour was published in 1994, the University of Washington psychologist David Barash was stirred to write, ‘Bad science and virulent racial prejudice drip like pus from nearly every page of this despicable book.’ Rushton, he added, seemed to have collected scraps of unreliable evidence in ‘the pious hope that by combining numerous little turds of variously tainted data, one can obtain a valuable result’. The reality, Barash concluded, is that ‘the outcome is merely a larger than average pile of shit.’