Airport Security         :        What's your name?
Passenger                    :         Batman                                            
Airport Security         :         Your real name please?                            
Passenger                    :         My name is Baaaaaat-Man               
Airport Security         :         Are you trying to be funny? What is your family name?
Passenger                    :         Superman     
Airport Security         :        ...
                                          








Airport Security handcuffs him and puts him into a locked security room  and then they checked his Passport...