CeOlWLqW4AEtW0ZIf you sell millions you’ll get thousands back as returns. The problem with Fifty Shades of Grey is slightly different though: I guess many buyers decided they didn’t want to keep this opus as part of their permanent collection, so have donated their copy to charity. So many have been thus disposed of that there’s no market — they can’t even pay people to take them away (well, they probably could, ‘cos all the punters would have to do is walk along to the next charity shop and donate it again) but apparently nobody needs to buy a second-hand copy now. (Paradoxically new copies continue to sell.)

Here’s how one Oxfam shop in Swansea, South Wales dealt with their oversupply.