BATMAN is SUPERMAN's SON?!!

This story is a about a guy who goes to a police station to make a report and here is the starting of the story

Man: " Hi sir, I would like to complain about one of your police officer, who have assaulted me at the cafe."

Sergeant: " Can I have your name pls?"

Man: "Batman"

Sergeant: "Batman?"

Man: "Yes, Batman."

Sergeant: "You trying to be funny is it?"

Man: "No."

Sergeant: "Than what is your father's name?"

Man: "Suparman"

Sergeant: "Hey,you trying to be funny is it?"

Man: "No."

Sergeant: "You are telling me that you are BATMAN, the son of SUPERMAN

Man: "Yes"

Sergeant: "You really too much you know, I can charge you for this offence for lying your name to an officer. Show me your IC."