Barrel the camera
When someone stares directly into a camera that is filming them, especially when they shouldn't be, such as an actor in a film. Equivalent to 'staring down the barrel of a gun'.
"I love it in Park and Rec when Andy does something stupid and Ben will barrel the camera with this look of confusion."
"Did you see the maid in the background of that scene? She's just barreling the camera the entire time."
"Did you see the maid in the background of that scene? She's just barreling the camera the entire time."