From skinny-dipping presidents to toxic tooth fillings to hit singing groups that can\u2019t carry a tune, authors Michael N. Smith and Eric Kasum\xa0 wrote 100 of the Worst Ideas in History. It's a celebration of humanity\u2019s historical, hysterical stinkin' thinkin'\u2014thundering brainstorms that turned into blundering brain farts, and the astonishing impact they carry to this day. Michael Smith is my guest.