mum: What's the name of that author, the one who has alzheimers?
me: Terry Pratchett. Sir.
mum: Thanks, that's the one! The man who looks like a tramp! What were those books he wrote about going round the world?
me: erm, I think you mean Bill Bryson.
mum: Noooo, not him. Oh you know! Never mind.
ten minutes later
mum: Backpacking around the world, he wrote about 6 of them. Loads of people bought them, they were very popular!
me: Erm ...
mum: You know! BACKPACKING AROUND THE WORLD!
me: The HitchHiker's Guide to the Galaxy??
mum: That's it! Told you!
me: Erm .... that was Douglas Adams.
Just a perfectly normal telephone conversation here. I know I am not alone ....