When he wakes up, Kevin lets out a sigh and- Wait. The first thing he does is check his room carefully for mals. Nothing, praise be. The second thing he does is... Ugh. Exercise. Push-ups, sit-ups, squats, jumping jacks. It suuuuucks. That's why it's so good for mana. He wants his room brighter; He has a good spell for that which will last a while on relatively minimal mana, and he bets he can sell that. But he needs any mana, first.
After that he proceeds to homeroom, and much later to the cafeteria, carefully poking breakfast trays with a knife and plating up two big plates of Various Breakfast. With those, Kevin knocks on the door to the nurse's office with his backpack full o' drugs and a smile on his face.