Mother's Letter

When the husband came home from his job, he found his wife crying.

- Your mother insulted me, very much - she sobbed.

- My mother? How could she do that when she's on a vacation on the other side of the world?

- I know. But this morning, a letter addressed to you arrived. I opened it, because I was curious.

- And?

- At the end of the letter, it was written: P.S. Dear Catherine, when you've read this letter, don't forget to give it to my son.