Two burglars were prowling round a barn one night. They could hear something moving inside, and ever so carefully they climbed in to see what it was. It was a rooster. "Ah-ha," they cried. "This will do for our supper tomorrow." They grabbed it and were about to kill it when the rooster squawked in alarm : "Please don't kill me. I can be useful to you. I can wake you at dawn every day, ready to start work on time."
"That's just what we don't want," growled the burglars. "If you wake people they'll catch us robbing their houses." So that was the end of the rooster.