Reminds me of Rita Johnson - who claimed she had written a book but had every excuse under the sun for why it didn't appear. I don't object to anyone writing a book. I don't even object to books which are promised but which don't materialise. What I DO object to are people who expect people to accept them at face value and who attack people who ask for proof of their credentials. Those with legitimate credentials do not attack people for asking to see them. It is both expected and appreciated. I'd actually be worried if someone didn't ask for my credentials on any matter of importance. Regulations are really tight in Scotland if you work with young people. Subject teachers must be accredited in their subject, have passed a medical and have passed a background check called Disclosure Scotland. We must also be registered with a professional body called the General Teaching Council (GTC). I have a bundle of papers which prove I'm "real" (wry joke in the profession) and I expect to be asked for these. I don't get huffy if I volunteer to help with my daughter's school trip and they ask to see my Disclose Scotland documentation so that they can tick a box saying they've seen it (despite the fact that they've known me for years) I'm rambling, but the bottom line is - people who appreciate the necessity for verification of credentials and who have nothing to hide will NOT throw a sarcasm fit at being asked to do so.