Thus making Grayson cry.

and then it turns out Damian was either actually just trying to kill him for stealing his bike originally but it looked adorable, or he was high on painkillers and had no idea what he was doing but it still looked adorable.

and then it turns out that Damian on painkillers acts like a cuddly human version of some combination of a puppy and a kitty, because I'm tired and not thinking straight and I have the power of headcanon. On a more plausible note, he would totally be the kind of person who would insist that the painkillers don't affect him at all while doing something only explainable via being high/hallucinating.