Because he is an erascist.
He works it out with a pencil
He grabs a pencil and tries to work it out
He hates nieeeeeeeeces to pieeeeeecesssssssss!!!!!!!
Sycamore trees!
Pen and Oink!
Because it had its in-de-pen-dance. I'm posting lots of really bad jokes tonight that just appear in my head, if just one person enjoys just one joke is worth it, good evening.