(N). An event occuring in the background of another, more minor event, and yet, at times, may alter the foreground event, or may be adjacent or related.
Jimmy and Bob wondered if they would ever see Rupert again as he took to the sky. In the background, he rose into the sky, only to be struck by lightning and then hit by a plane. What a kilographic...
A happening in the background, such as a man lawnmowing, and there is a violent mob war in the background...
The Simpsons: almost all the episodes...