If you have the Joker Why So Serious Case, you can provide a better class of criminal and answer the phone by releasing psychotic laughter! Okay, you don't need to go that far...nobody talks on the phone these days anyways!
If you have the Joker Why So Serious Case, you can provide a better class of criminal and answer the phone by releasing psychotic laughter! Okay, you don't need to go that far...nobody talks on the phone these days anyways!