As Harley is arrested, Catwoman thanks Batman for the rescue, to which he states he owed her one for saving him. As Catwoman discusses their relationship and makes a pass on him, Batman pulls off his trademark disappearing act, leaving her to smile and mutter to herself "Hmm.
As Harley is apprehended, Catwoman expresses gratitude to Batman for the rescue, to which he responds that he was indebted to her for saving him. As Catwoman discusses their connection and makes a romantic advance on him, Batman executes his signature vanishing act, leaving her to smile and remark to herself "Hmm.