A few fraternity brothers needed to fill a science requirement
in order to graduate, so they spent weeks studying for the final.
The day of the exam arrived and they were more than ready for the
test. The teacher pulled out a chart, and on it were different
pictures of bird's legs. The teacher said, "This is your exam. Name
these birds by their legs."
After ten minutes one boy stood up, absolutely furious, and slammed
the paper down on the teachers desk. "Dammit!" he hollered. "You
knew I needed to pass this exam to graduate. How could you do this
to me?" The guy begins to leave the room and the teacher yells at
him, "Hey you, boy, what's your name?" The student pulls up his
pants, revealing his legs, and says, "I don't know sir. You tell
me."