If you notice any of these things, be assured that there is Work Avoidance happening in the vicinity:
A 12 year old and 7 year old found watching Thomas the Tank Engine in rapt silence.
A screensaver bouncing across a 12 year old's computer while wild whooping sounds emanate from the backyard.
Cooing and giggling heard in the living room whilst you read aloud in the kitchen tales of martyrs being hanged, drawn and quartered. Upon glancing up, you notice your audience is suspiciously absent.
Your child is at least a week behind on assignments, yet amazingly has the time and patience to sit with his baby sibling and attempt to teach her to walk.