Shares of TASER (NASDAQ:TASR) have more than doubled over the last six months. But when a lot of people think of TASER, they think about stunning incidents, and not stunning stock returns. Video of the TASER incident at the John Kerry rally in Florida has drawn more than 2 million viewers on Google's (NASDAQ:GOOG) YouTube. But what about TASER the stock? Will shares continue to climb, or is it too late for investors to buy? In this installment of "Missing Out," I ask Motley Fool contributor Tim Beyers.