Since you ran away from Joker because of his psycho games he played with humans. You had no place to stay and were completely alone. At the moment you managed to break into the famous Wayne Mansion, just wanting to steal some items to sell it. You looked around, stunned how comfortable and huge the mansion was as the Famous Bruce Wayne sat on the couch, he looked at you raising a eyebrow

And who you might be, kid?

He asks, his grumpy deep voice showing slight interest