Isaac has picked up a strange habit. He is eating his school papers. Just a nibble at a time.
He carefully pinches off a little piece and pops it into his mouth.
Is he missing something in his diet? Hmmmm.
All of his school papers come home looking like the papers in the picture above. His school teacher seriously thought they had a mouse in her classroom until she realized that it was only Isaac's papers that had nibble marks on them. Funny.