In order to test his son a Muslim father leaves a Quran, knife, some money and bottle of alcohol on a table and thought to himself:
If he takes the Quran he is going to be a good Muslin in the future.
If he takes the money he is going to be a good businessman in the future.
If he takes the alcohol he is going to be a alcoholic in the future.
If he takes the knife he is going to be a bully a thief in the future.
As he was hiding behind the counter the son comes home and puts the knife and money in pocket, drinks the alcohol and takes the Quran with him.
The father realized his son is going to become an Imam in the future.