At one time or another, very young children need to express themselves, using their words, while other children throw themselves on the floor. The dropping to the floor and high wailing is irritating , if not infuriating. But we are the adults. We are the ones in charge.
These future adults are honing their skills in action and in words.
This video is 6 minutes long, worth every second! This man is very wise.
From America's Funniest Video, about 1:30.
I wonder what became of this boy?
Remember: you are an adult. You do not throw tantrums. You do not stomp off and slam doors. You do not throw yourself on the floor. You control yourself. How is this working out for you? Oh, go ahead, cut loose!