A big corporation recently hired several cannibals in the interest of cultural diversity.
You are all part of our team now," said the HR rep during the welcoming briefing. "You get all the usual benefits and you can go to the cafeteria for something to eat, but please don't eat any of the other employees."
The cannibals promised they would not. Four weeks later, their boss remarked, "You're all working very hard and I'm satisfied with you. However, one of our shipping clerks has disappeared. Do any of you know what happened to her?" The cannibals all shook their heads no.
After the boss left, the leader of the cannibals said to the others, "Which one of you idiots ate the shipping clerk ?" A hand rose hesitantly, to which the leader of the cannibals continued, "You fool --- for 4 weeks we've been eating managers and no one noticed anything. But Noooooo, you had to go and eat someone who actually does something!"