A child's behavior will improve in proportion to the distance she is away from the parent.

Two is equal to two, except when referring to time. Two minutes of tantrum lasts 20 times as long as two minutes of quiet time.

The choice of a preschooler's best friend corresponds directly to the distance the friend lives from your house.

A child's enjoyment¹ of a popular entertainment will be inversely² proportionate to the parent's enjoyment.

The chance of a surprise visit by your parents-in-law is directly proportional to the size of the mess in your home.

A child will always eat exactly what she has loved for the past year. . . unless it is the only food in the fridge.

The ease with which a toddler acquires the ability to say a word increases with its likelihood to embarrass a sailor.