I like the Make an Offer function, but I don't believe I've ever offered lower than 10% off the list price.

... or... no, once I did. There was a Georgian inkwell by a well-known silversmith of the period - listed at the sort of price (well over £1000) I'd have expected to pay at the sort of London antique dealer's shop where everything is marked up to its groaning maximum. I'd also have tried bargaining down if it were in a shop.

Because of the high price, I wil admit I did start my offer at around 20% off the listed price, but did expect that the seller would counter-offer at perhaps 10%. I was hoping for 15%.

But to offer half...? That's just rude!