Zac apologizes for falling on an airport security gaurd.“There were so many paparazzi. It was crazy.When there’s that many paparazzi, you can’t see. People start yelling. People get hurt. While I was running, the guy in front of me kind of fell and then I fell on top of him. It was kind of weird. The guy was not a bodyguard — he was just a guy from the airport helping out. I felt terrible,” said Zac.

Source: www.sfgate.com