the cheek of it all

hi all,
  thought i would share this conversation with you,I was talking to a customer the other day and he explained that although he had been keeping fish for about 2 yrs ,he had decided to buy some koi off ebay and he knew the risks of buying from unknown sources so he was wondering if we would quaranteen these fish for him for a couple of weeks just to be on the safe side as he did not want to set a quaranteen system up and he knew we had ten units which we where going to mothball for a couple of months and it would help us keep our filters going,[no mention of contributing to the running cost because he was doing us a favour].
   I cannot print my reply here but i dont think this customer will be coming back in a hurry,and the funny part is non of the staff have ever sold him anything although he has been in to look at the koi on a couple of occasions over the last couple of weeks,what do you think the answer should have been,
regards Teesside Koi Paul