One day a mother tries to wake her son up by saying:

"Get up son or you are going to be late for school."

But the son says that he does not want to go to school. So his mother asked him to give two reasons for him not wanting to go to school. So the son said:

"Firstly because it's too early in the morning and secondly I don't like school."

Then the mother said that's no reason for not going to school. So the son asks his mother to give him two reasons according to her why he should go to school. The mother said:

"Firstly because you are 52 years old and secondly you are the Principal of the school."