The Potato Salad Incident

Imagine a giant ball of potato salad rolling uncontrollably down a hill, snowballing as it runs over everything in its path, and you have "The Potato Salad Incident."
Fun for children of all ages.
When Miss Jenkins trips, sending her bowl of world famous potato salad rolling down the hill, craziness ensues. As the ball of potato salad rolls down the hill, it engulfs everything in its path, growing bigger and bigger. Is anything safe, as it rolls down the hill?