I had a friend in high school who was a complete genius. You could give him any math problem, no matter how complex, and he would solve it in his head in seconds. Ask him a few more, (out of sheer amazement), and he would suddenly dart down the hallway knocking over anyone in his way, screaming like a banshee. Most of the time, people treated him like a complete idiot...and I guess to most of the people I went to school with, at least socially, he was. But does that make him insane?