Sieg couldn't help but frown when he saw the delinquent looking youth approaching him. After all, the arrogant attitude that the delinquent displayed previously was already more than enough to make him pissed enough to effectively think about disposing of him later, so he had no confidence in maintain his self-control if tue overbearing hairless monkey actually approached him, filling his nose with his weird smell that most certainly didnt suit a pure human - a creature that already isn't exactly bearable in Sieg's not-so-humble opinion.
Turns out that he was indeed correct about that, as the human immediately managed to make him even more enraged in the following second, directly referring to him as a "pet" and "smelly lizard" while putting some disgusting grin on his face - an action that would normally earn him an one-way ticket to hell in any other situation.
"Excuse me?" He said, wearing his best facade of shock - that completely suited his bocchan-like face in the human form - trying to the image of a normal human for the sake of avoiding making another commotion and consequently having to change his identity again - a bother that he didn't felt like having to deal with - but even that attempt was quickly demonstrated to be vain by the next action of the boy, that directly talked about his condition, proving that he was a part of their little supernatural community - at least in the dragon's twisted opinion, that didn't consider him to be merely using some kind of intimidation tactic that resulted in a lucky guess.
"...How do I deal with it..?"He said, his voice losing all the emotion that he previously demonstrated as he moved his right hand to cover his face, seemingly facepalming, as his whole body shivered, looking almost scared for a second before he burst into a laugher that could only be called as unsettling, nearing insanity."It's pretty easy, actually." he continued as he recovered from the sudden burst of emotion - albeit still appearing to be amused by something - his eyes focusing in the delinquent looking youth as he directly moved to intercept his walk, appriaching and grabbing the tie over the boy's shirt - a part of the standard uniform of the school - in a speed that wasn't in any way under that of a standard high class devil, using it to hold the boy as he finished his speech."I just comfort myself by demonstrating to these mongrels how a dog couldn't ever hope to surpass a Dragon, even if the Dragon is bound by some annoying chains."