Sam has the most outrageous looking pencil sharpener Morgan has ever seen. It's a yowie, bright red, with evil eyes and enormous fangs. Morgan longs to have it. He knows Sam will get bored with it and leave it somewhere. Much better for Morgan to take it home and look after it properly.
But as soon as Morgan steals the yowie, he knows he must get rid of it. Because the yowie just won't leave him alone . . .