PHILADELPHIA: An excited man threw a copy of his own book onto the stage where President Barack Obama was standing during a weekend rally in Philadelphia.As per details, the incident took place at a Philadelphia campaign rally in front of nearly 20,000 people but President Obama did not react to this incident.The Secret Service questioned and released the thrower after the law enforcement agency concluded that the man posed no threat to Obama.A Secret Service spokesman said the man had written the book and wanted the president to read it – Sananews