The following is a classic example of the belief behind a behavior. Suppose you have a four-year-old boy whose mother goes off to the hospital and brings home a brand-new baby. What does the four-year-old see going on between Mom and the baby? — Time and attention. What does your son interpret that to mean? — Mom loves the baby more than me. What does the four-year-old do in an attempt to get the love back? — He may act like a baby himself and cry a lot, ask for a bottle, and soil his pants.