aptitude moo
There are no Easter Eggs in this program.

aptitude moo -v
There really are no Easter Eggs in this program.

aptitude moo -vv 
Didn't I already tell you that there are no Easter Eggs in this program?

aptitude moo -vvv
Stop it!

aptitude moo -vvvv
Okay, okay, if I give you an Easter Egg, will you go away?

aptitude moo -vvvvv
All right, you win.

                               /----\
                       -------/      \
                      /               \
                     /                |
   -----------------/                  --------\
   ----------------------------------------------
 
aptitude moo -vvvvvv
What is it?  It's an elephant being eaten by a snake, of course.