You get the ray-gun, the only one in its kind, but before you're able to use it I bite you, and you become a zombie as well, only a normal, quite brainless one. You then become my minion for the rest of your existance.
EDIT: interesting, I were writing something similar before I realized I should make use of my pic.
Anyways, your lunchbreak becomes 40 minutes long, but to compensate you're forced to have double the amount of lessons per day.
I wish I were better at playing TF2.