Chap comes in, and doesn't even bother coming fully into the shop, he just stands in the doorway and summons me (guaranteed to make me a happy bunny and keen on their books). He then announced that he has "A rare and valuable copy of Mein Kampf from 1939, worth £100" - what will I give for it.
I said that I wouldn't sell it for £100 and it was very difficult to sell. I would only pay a maximum of £20 for it. (It's not particularly rare, and you can get reasonable copies for £15 - £20 or a very good one for £40)
He shook his head wisely and told me it was worth far more that this. He has already shown it to a bookshop in Southampton, and they are very interested in acquiring it. Now my mates Pete and Brian in Southampton would almost certainly not be keen on acquiring a copy of Mein Kampf - and if they were, they would just buy it ! I told him he should just sell it to them, but apparently they aren't offering enough either.
He asked me how he should sell it, and I said that he could try ebay. Yet more wise smiles - he's already tried that and it was removed for being offensive material. I gave my own wise smile and pointed out, that yes, it was difficult to sell ! I don't think he got it, but I'm sure he and his copy of very expensive Mein Kampf will be happy together !