Truth be known, airports attract some of the nuttiest people on the planet. And their antics are way over the top! Following are some of the craziest things uncovered by security at airports, such as 18 severed human heads at O’Hare International in 2013. Headlines in Chicago were ablaze with theories about the find and their final destination. Turns out they were a legitimate medical shipment that attracted concern because of faulty paperwork. Check out what other surprises security came across at airports in this edition of The Richest.