During the last carpool the subject was teenagers and their appetites. Most agreed that teenagers would eat anything, anywhere and at any time. Some were concerned that such appetites always made it hard to judge when you should feed them because they were always grazing.  

The veteran parent of six children, told us of his method  for judging the true hunger of teenagers. "I would hold up a piece of cold broccoli and if they were jumping and snapping at it I figured they were hungry enough to be fed."