there are three people on a fence. The first one can only say "yes", the second one only "knife and fork" and the third one can only cheer... One day a police officer walks by. "Have you seen a girl, tall and blond?" "yes" Do you know where she is? "yes". Are you going to tell me? "yes". After a long silence... "Have you killed her?" "yes." "how?" "Knife and fork" "You are under arrest, you have the right to remain silence, everything you say can and will be used against you in court of law..." Then the third person begins to cheer. :P