Chap comes in, up to the counter and asks if I have any books on Antique Pot Lids. I ask him what sort of pots he means, and he tells me he wants a book on the lids of jam jars, honey pots, glass and ceramic - as long as they are over 50 years old.
I ask him about the pots themselves, and he looks at me as if I'm an absolute idiot.
"Why would I want a book about those? It's only the lids i'm interested in!"