The Tomb of the Unknown Soldier is NOT the place for grab-ass or smoking and joking. It is a solemn place, a place of reverence. If you want to laugh and clown around, visit a comedy club. The Tomb of the Unknown is not that.
Watch as this guard at the Tomb has had enough of the audience’s disrespect and giggling. He stops and addresses the crowd, demanding their silence and respect at this most somber of ceremonies. The audience immediately complies and the perpetual tribute continues.