Are you behind with getting your Christmas cards sent off? If so, you will sympathize with the woman who rushed into the card shop just before Christmas, snapped up a packet of 50 identical cards, signed 49 of them, ran to the post office, and managed to get them into the last mail. It was only as she returned home that she looked more closely at the one remaining card in her hand. To her horror, she discovered that the main text read:

This is just to say
A gift is on the way!

There were 49 disappointed people that Christmas!