"Unwise to assume that you can teach others things. Some refuse to learn; some are incapable of learning." Sephiroth glances off in the direction Avan left. "Considering how he seemed unable to recognize how unwelcome and unpleasant his presence was for you...that boy likely falls in the latter category." He shakes his head slightly. "But in any case, never deviate from what you know is correct for the sake of a gamble. And you cannot control what other people do or don't learn from interacting with you, so 'teaching someone' not to do something is always a gamble."

He cocks an eyebrow at his younger self. "Besides...there are other ways of inflicting punishments than the physical. If you had, for instance, complained to our fae hosts, they may have taken offense at his being so rude to their guests, and exacted their own revenge. At the very least, they likely would have taken action to ensure you could continue to enjoy their party without interference. By viewing this is a problem you have to deal with yourself, you've overlooked valuable resources."

He pauses, then reaches out to lightly touch his younger self's shoulder. "That said...you were considerably provoked, and are clearly stressed. Your restraint may not have been perfect, but you didn't harm him, or cause an incident. I am proud you held back. I stepped in only when I saw he was refusing to understand when he should leave, and upsetting you too much in the process." Another pause. "And I am proud of you for coming to this party at all. I know neither of us have ever been comfortable at such events, but...to push one's comfort zones in an effort to improve our handling of unfamiliar situations is always admirable."