Sir Paul had decided to buy his wife a brand new leg for Christmas. Once he brought it home, he wrapped it up and hid it in the bedroom wardrobe. The next day, however, as Heather was tidying the bedroom, she opened the wardrobe and guessed what was in the wrapped package. 'I hope that isn't going to be my main present' demanded Heather, to which Sir Paul replied, 'No, no, no. It's just a stocking filler'