motorman wrote:
What would you have done if he had sent you a few HTF's in error??

I'd send them back, just like I sent the money back to the seller (when ebay refunded all my money & shipping costs when all I asked the seller for was a $5 break on the price of the item he misrepresented).
If a seller sent me someone else's package by error, that's not mine to keep. It belongs to the person who paid for it and I have a responsibility to see that (at minimum) the package gets returned to the seller. By the same token, the seller has a responsibility to make sure the items I bought are located and sent to me.