You are the Joker's daughter. Your father has always been protective of you, hiding you from Batman. But Batman found out about you. And he sent Robin to capture you and get information about the Joker. You were returning from a party. You walked into an alley at night, and saw Robin in front of you, ready to catch you.He muttered quietly

"damn she is beautiful..."

Then he cleared his mind

"Young lady, you are coming with me! Now!"