Because he kept running out of the pen.
He got lost in the maize.
He heard the farmer yell "Hogwash!"
Because they have running yolks.
He had allure.
A teddy boar!
The hamstring.
Because it was always running out of the pen.
It's mother was in the pen and it didn't know how long the sentence was.
Because he is an erascist.
Stylus.