The Bird-Foot Exam

When a student was given his exam in his Orinthology class, he looked at it and realized he had no hope of passing. It consisted only of identifying birds by pictures of their feet. The student decided not to waste his time and got up to leave, throwing his exam in the trash as he went by. The Professor angrily asked him what his name was and the young man pointed at his feet and said, "You tell me, Prof."