This is a computer joke that I found from http://www.ajokes.com. It is elegant in its brevity and sense of humor. See why:
I was working in a wall street INVESTMENT BANK when someone from the information technology group came by our office asking us to enter our passwords in the new software system.
My colleague Barry, with his usual rebellious attitude, entered the password "Penis."
We all fell on the floor with laugher when the computer replied:
*** PASSWORD REJECTED. TOO SHORT *****
(Photo credit: www.sxc.hu)