There was such a story ( http://www.haaretz.com/hasen/spages/966679.html http://www.haaretz.com/hasen/spages/966679.html ), but the guy was "an accomplished mat

There was such a story ( http://www.haaretz.com/hasen/spages/966679.html http://www.haaretz.com/hasen/spages/966679.html ), but the guy was "an accomplished mathematician" before becoming a security guard.