The Anime Freak is probably the most common, and one of the most annoying. You can usually spot a few warning signs to let you identify them before it's too late: they wear the same exact Evangelion shirt every day, they have more than one anime key chain on their person, they wear glasses, they say phrases in Japanese that hey obviously don't understand (such as "Yes! I will never forgive you!"), they refer to you as "-chan", make obscure Japanese culture references during class, and usually fail class. You have to be extremely careful not to let them smell pity or fear on you, because if they do they will immeadiately latch onto you and suck up both your time and patience, leaving only a lifeless husk. Desperate for human companionship, they will invite you to club meetings, anime showings, conventions, and all other sorts of various things you don't care about.