36. The Quirky Genius
In his personal life, Nikola Tesla was an… “unusual” character. In addition to being a celibate, he hated human hair, jewelry, and anything that could not be divided by three. He had to count his steps to make sure that they were divisible by three – otherwise, or if he lost count, he would have to do his journey all over again.
Tesla also had a phobia of round things. So powerful was his fear of round items, that he once got a fever from looking at a peach.