Customs Official : 'May I know your name?'
Arriving passenger : 'Batman'
Customs Official : 'What's your name!?'
Passenger : 'My name is Bat-man'
Customs Official : 'Trying to be funny!? What's your surname?'
Passenger : 'Super-man'
Customs Official : 'So you're telling me your name is Batman Superman?'
Passenger : 'Yes'
Customs Official : 'Arrest the guy... '

When they had him in custody, he was asked to show identification: