Humor:

There was this blonde who lived in an apartment building.
She came down on Monday opened her mailbox, checked it, then closed it, and left.
She did the same thing on Tuesday, Wednesday and Thursday.
On Friday she came down, like she had done all week and opened her mailbox and checked it and like before had nothing in the mailbox. She then slammed it shut and screamed "my computer is so stupid, it keeps saying I have mail when I do not."