Fourteen is a green number (algebralian) fourteen. Fourteen is a kind of "psychopathic maniac with a smile on their face", if based on the fact that they happily ran to eat people skin. They seem to be naive and excitable, and likely not understanding that "Eating people's skin" is bad. They're addicted to eating people's skin, as mentioned in "Thanks for 1,500,000 Subscribers!" and later shown in "Thanks for 2,000,000 Subscribers!".