(CNN) - The Secret Service is now shedding some more light on the circumstances surrounding a man who threw a book at President Obama at an event in Pennsylvania Sunday. And they're not throwing the book at him.
According to Secret Service spokesperson, Ed Donovan, the person involved was an overzealous author who just wanted to toss his book into the president's reading list.
"He was an over exuberant person who wrote a book that he wanted the president to read," Donovan told CNN.
President Obama did not appear to notice the book being hurled on stage, which was caught on video, as he was concluding his remarks to a Democratic National Committee rally in Philadelphia. But Vice President Biden, who was standing behind the president, apparently noticed the incident.
After Secret Service agents saw the man throw the book, they detained and interviewed him and determined he was not a threat. Because he was not charged, the Secret Service is not releasing any information about the individual.
Everyone who attends presidential events is screened for dangerous objects by the Secret Service. Donovan said they don't plan on changing anything.
"A book isn't considered a dangerous object so we're not going to start prohibiting books or any inanimate objects," he said. "The person threw a book on stage and our agents acted appropriately."
This wasn't the only thing that kept law enforcement officials busy at the rally. Earlier, while the president was speaking, a naked man ran through the audience. He was reportedly responding to a $1 million pledge by a billionaire to become the first person to streak an Obama rally.