A teacher brought balloons to school and asked the children to

blow them all up and then each write their names on their balloon. They then tossed the balloons into the hall while the teacher mixed them all up from one end to the other. The teacher then give the children five minutes to find the balloon with their own name on it. The children ran around, looking frantically, but as time ran out, nobody had found their own balloon...
The teacher then told them to take the balloon closest to them and give it to the person whose name was on it. ln less than 2 minutes, everyone had their own balloon.
Finally the teacher said: "Balloons are like happiness, nobody will find it looking for theirs only. Instead if everyone cares about each other, they will find theirs as quickly as possible."