Lightning Round: This is a one way ticket down By: CNBC.com News May 21, 2015 at 19:18 PM EDT Are you ready skeedaddy???!!! It's time for the Lightning Round. Cramer makes the call on viewer favorites. Read More >> Related Stocks: Alcoa Hershey Co Lannett Company Inc Martin Marietta Materials Pdl Biopharma Inc Summit Materials Inc Time Warner