The buffalo calf told his cow, “Mother, isn’t it kind of those wolves to always go with the herd, protecting us from our enemies?”  The buffalo cow upbraided him, “Son, they are looking for the old and the sick to kill and eat.  They are not protecting us.”  “Then they are the enemies,” he said and straightaway charged out to trample them, whereon he was slaughtered and devoured.

Moral: Know your enemies.