Just passed on from Chris Ellemenopi:
The mother in the supermarket clearly had a bad case of parental burnout. Her toddler would not sit down in the grocery cart, and finally she snapped. "If you fall and break your leg," she scolded her, "don't come running to me."
The sad part? Every parent I know started the discussion by talking about kids in the supermarket: and the best ones talked about THEIR OWN kids.