I didn't say go to the administration with the motive of getting a OK to vaping in class. I said go to the administration and ask about your nicotine cravings in class. I'm sure they'd agree that vaping, the patch, or nicotine gum would be a good idea. & I'm sure that if the student let the admin know that vaping is their preferred choice for nicotine replacement therapy, the admin would agree that a bathroom break to vape would be within reasonable lines, without disrupting a class and without going through an entire class thinking about nothing but a hit of nicotine rather than focusing on his/her studies.
With that said, I don't think taking a hit or two off of one's eGo and blowing it into one's sweatshirt sleeve is going to disrupt a classroom and I'm sure you could do this with the teacher's back turned without anyone around you noticing. So, do it? There is no need to get the teacher or the administration involved if you already know that your not going to disrupt anybody. Does taking your sweatshirt off in class disrupt the class? Is taking your sweatshirt off in class banned? It sure looks like a whole lot more commotion than stealth vaping from an eGo into your sleeve. Would you go to the admin or teacher to ask if you could possibly take your sweatshirt off in the middle of class in the future? Furthermore, would you go to your admin or teacher and ask if you could take your medication in class? Nicotine is a stimulative that the human body can build a dependance to. That means once your addicted to nicotine, you need it to stimulate your central nervous system. If your feeling sluggish and irritable and you need nicotine to study at your full capacity, and if you know that taking a stealth hit from your eGo and blowing it into your sleeve would cause no more commotion to the classroom than taking a bottle of rittalyn out of your backpack, popping the cap, shaking a pill into your hand, and swallowing it, then DO it until your asked not to. Then is the time to have a mature conversation with your teacher about your nicotine dependance. If your teacher does not understand the severity of your nicotine dependance because your teacher is not a nicotine user/addict or your teacher is not as HEAVY a nicotine user or addict, THEN it is time to have a talk with her/him and/or the administration about bathroom breaks being a possible solution.