There once was an scientist doing an experiment on the reactions of
 fleas.  He had trained a flea to jump on command.  The scientist
 would command the flea "Jump flea!" and the flea would jump.
 Then the scientist would proceed to pull off one of the fleas legs
 with a pair of tweezers and write a comment in his notebook.
 
 The scientist did this many times until the flea had only 1 leg left.
 The scientist said "Jump flea" and the flea made it's best effort to
 jump, which the scientist recorded in his notebook.
 
 After he pulled off its last leg, the scientist again commanded the
 flea to jump, and after repeating the command many times without
 the flea responding he jotted down in his notebook, "After the
 flea looses all of its legs it becomes completely deaf."