Father ignored the temper tantrum. His son quickly recognized that his kicking and screaming didn't get him the cereal, so the tantrum stopped. The child wasn't forgotten, though. Dad's quick hug reassured him that he was important. At one time or another everyone's temper flares releasing tension, frustration and anger.
Children can be their own worst enemies.
They have strong desires, limited abilities, and difficulty managing their emotions. After numerous unsuccessful attempts to tie her own shoes, a frustrated 2 year old throws her shoes and kicks her feet. Temporarily losing sight of her capabilities, her temper takes over. Tantrums are one way of expressing anger. In the grocery store the little boy quickly learned that his actions were not working.