I mean, I know this other guy who absolutely was mentally handicapped in my Calculus class. He obviously could do calculus, but we all had to be careful how we

I mean, I know this other guy who absolutely was mentally handicapped in my Calculus class. He obviously could do calculus, but we all had to be careful how we talked and interacted, because his ability outside of math was almost nil. Must have been one of those 'idiot-savants' or something.