Did You Know....? - Doctor Doctor

German Physicist Professor Philipp Lenard suffered from onomatophobia, the fear of certain names. He couldn't bear to speak, see or hear the name of Sir Isaac Newton. At the universities where he lectured, Professor Lenard would turn his back on the students whenever Newton's name had to be mentioned. A member of the class would then write the offending name on the blackboard, but it had to be rebbed out again before lenard would continue with the lecture.