It rolls and rolls until it bumps into one of Robin's very nice shoes. He looks down at it, and then at Phalanx's feet, and then back up to their (currently) blue eyes.

And now that it's just him and them again, there's room for the cute moment to seep in and make him happy. So he shrugs off some of his irritation with Vincent and with knots--both literal and figurative--and walks back up to give it another try.

"You look like you haven't had a bath in a long time," he mentions with a little smile. He tries to find something less threatening to cut first, like something on their upper arm, where the skin is less sensitive. He doesn't plan on hurting them, but he doesn't want to make them worry either way.