"S'pose that would make sense." So this is just how it works when Joker grows new limbs, apparently.

He considers the way the light moves around his fingers for another moment, then, gently, pulls his hand free. As interesting as it is, he's not sure it wouldn't have a bad effect on either Joker or himself for him to keep his hand in that light for too long. He straightens up, flexing his fingers and looking over them for any light that might have kept on clinging.

"...Seems kind of appropriate to you, actually."