 Peter Ackroyd wrote in London : The Biography that Green was for the most part ignored , becoming " a poignant symbol of the city 's <unk> and <unk> " . He was arrested for public obstruction twice , in 1980 and 1985 . " The injustice of it upsets me " , he said , " because I 'm doing such a good job " . He took to wearing <unk> to protect himself from <unk> , several times finding it on his hat at the end of the day . 
