When a customer arrives at a supermarket checkout, an overhead camera identifies the items on the conveyor belt and anything left behind in the shopping trolley.

At the end of the video, the camera spirals around the building overhead as the broad logo appears on the screen: a lowercase b that wraps around itself in an imitation of the @ symbol.

Thanks. Uh, would my camera be all right in the overhead compartment? I don't want it to get broken.