A relieved sigh passed his lips, followed soon by a huff of a laugh when Charles tousled his hair. He leaned back enough to meet his teacher's eyes, blinking thoughtfully then grinning and nodding toward the mentioning of 'adding' things; Charles didn't need to outright say it for him to get the meaning behind it. "Understood, Professor. I hope it does not come to that, but if it does, I pray that I am strong enough to control myself until I can talk with you." At a later date, when the both of them were less tender on the subject, there could be more discussion on both of their scars.

"Okay," he agreed with some reluctance, still wanting to continue with the training, although he was feeling rather tired. "You do not want me to teleport you back inside? I would have no trouble doing so, considering how close we are and all."