The Meaning - A Short Story

Raju was alone in the house with his grandpa. His parents were away to visit an important relative of theirs. The mother had instructed Raju to do the maths homework completely in the three hours that will take for the parents to come back. The grandpa was keeping an eye on Raju for mischief and was guiding Raju to concentrate on his homework.
After a while, Raju asked his grandpa, "Can I go to the toilet for number one?"
His grandpa muttered, "Why say number one? Just say I want to go to the toilet. And come back soon and finish your work. Your mother will be angry otherwise."
Raju behaved very well and completed his maths homework, when the newspaper vendor came and rang the bell.
Raju opened the door and took the bill and announcing loudly, "Four hundred twenty rupees for magazines !", he gave the bill to his grandpa.
Raju then asked his grandpa to pay the money to the newspaper vendor. His grandpa refused loudly and told Raju to give the bill to his father.
Raju could not understand. He asked his grandpa, "You have a lot of money. Why don't you pay?".
Grandpa replied," I shall pay this time. But ask the newspaper vendor to change the name in the bill to my name."
Raju did as asked by his grandpa. He got the name changed and made the payment to the newspaper vendor.
The parents came back from their visit back home. On hearing that Raju had finished his homework, the mother gave Raju a big hug.
There were smiles and happiness everywhere . . .