The creature bites itself.

If I could take out my intestines to bite them, I would. Something is not very right... patience in the form of waiting for the boy to get changed in the morning, to wear his sandals, get into the car, wear his seat beat, undo his seat belt, get out of the car, get into the lift, get out of the lift, through the school gates, put his shoe in the cubby hole, sit down for health check, sanitize his hand, carry his own bag into the class, has been worn down so thin, it's not only showing what the creature within looks like, it's revealing bits of it - sometimes the snapping fangs that spews out unimaginable threats, sometimes the quick pincers that latches itself to flesh and bone and sometimes like today, its maddness and desire to eat itself.