"PUP, I wished I was correct in believing it to be a falsehood." he muttered under his breath, quite disturbed by its mere mention. He then seemed to light up slightly, though possibly just to mask his deeper emotions, "Punish you? You are not in my class, by what authority could I punish you. With your power, if you wished harmed upon my students, you would have already inflicted it and their would be nothing I could do about it, considering you appear to either have very potent spacial or temporal manipulation skills, so I see no reason to bar you from my class." He then cracked a slight joke, "Anyways, independent study is always good for students." 

He then teleported back to his classroom, not wanting to waste his time. He noticed that his class still seemed to be worry about the object. "I do not care if you count to study or not, however allow me to give you a demonstration about both the lesson and a very possible explanation about the phenomenon we have seen. 

He touched his hand on the desk and magic flowed from his hand making a moderately sized circle in comparison to the desk. He then took a pencil and placed it within the circle. "What you are about to see is known as Overload magic, one of the magic types we are studying. As you should know, Overload magic is the technique of filling more magic into an object than it can hold normally. One of the simplest forms of this is to simply apply magic directly and keep applying it even after you are meet with resistance from the magic already within object. You will be able to observe the results." he said with a grin. 

He then placed his hand over the pencil, those magically attuned could feel magic being transferred between the two. After a few moments, the pencil seemed to start to rumble and give off a slight glow, and a few moments after that, there was a noise as the pencil basically exploded. The shards of graphite and wood were stopped by a barrier he placed down as denoted by the circle. 

He then smiled, "Is there any questions about the lesson or the demonstration."