I remember a few years back taking the 17th and the tutor says all got your 17th books and looks to one chap why is your colour book different to the other lads books , the chap say why .the tutor say where did you get yours fliebay ,chap says it was cheep ,tutor opens the book and says its a fake ,the chaps its not, the tutor says it is ,why says the chap the tutor says I helped the write the book .Well that's something I guess