Does this ring a bell with anyone......

A large companty recently hired several cannibals to work with them.
"You are all part of our team now", said the HR
manager during the welcoming briefing. "You get all the usual benefits
and you can go to the canteen on the Ground Floor for something to eat,
but please don't eat any of our 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 your
work. However, one of our secretaries has disappeared. Do any of you
know what happened to her?"
The cannibals all shook their heads "No".
After the boss had left, the leader of the cannibals said to the others,
"Which one of you idiots ate the secretary ?"
A hand rose hesitantly.
You fool!" the leader continued. "For four weeks we've been eating
managers and no one noticed anything. But, NOOOooo, you had to go and
eat someone who actually does something."