Geometry
A crazy, stupid way of torturing students and we can thank Pythagoras for that. people that teach geomatry are usually old, since no one cares about it now. once they die out, a.k.a. extinct, the human race shall be free!!!
Weee, look at meee i am pythagoras, a squared and b squared is ummmm... f squared, no wait... c squaredd... weeee!!!