I was caught out one year when someone gave me a present that I didn't expect. So from then on I always kept a small box of chocolates in, just in case! Our elderly neighbour, who complained bitterly about everything we did, came round one day with a present, straight away I got the chocolates I had bought and took them to her, feeling a bit smug I suppose. I opened the present on Christmas day, a box of Roses chocs, identical to the ones I gave, the only difference, these were stale, must have been from a year or two before, and the ones I gave were just bought. The annoying thing is, she probably thought I had given her the ones she had given me...and these same chocs would probably been given away some time in the future.