In Season 4 - Episode 9 "O Come, All Ye Faithful" Time: 11:54 - Damon & Stefan are talking on there mobile phones about how Elena is doing since Damon released he from his sire bond, As they are talking on there phones you can clearly see that Damon's phone is upside down as the camera is at the bottom, as he continues to talk to Stefan for a few moments they do a few flashbacks and Damon's phone is now right side up and you can see the camera again.