A man was in his front yard mowing his grass when his attractive blonde neighbor came out of the house and rushed straight to the mailbox. She opened it, looked in, then slammed it shut and stormed back into the house.
A little later she came out of her house again, went right to the mailbox and this time opened it, looked in, felt around it, then slammed it shut again. Angrily, back into the house she went.
As the man was getting ready to edge the lawn, she ran to the mailbox, opened it, felt all the way to the back, and then slammed it closed harder than ever.
Puzzled by her actions the man asked her, "Is something wrong?" To which she replied, "There certainly is! My stupid computer keeps saying, "YOU'VE GOT MAIL."