Pencil: I'm sorry....
Eraser: For what? You didn't do anything wrong.

Pencil:
I'm sorry cos you get hurt bcos of me. Whenever I made a mistake,
you're always there to erase it. But as you make my mistakes vanish, you
lose a part of yourself. You get smaller and smaller each time.

Eraser:
That's true. But I don't really mind. You see, I was made to do this. I
was made to help you whenever you do something wrong. Even though one
day, I know I'll be gone and you'll replace me with a new one, I'm
actually happy with my job. So please, stop worrying. I hate seeing you
sad. :)

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Are you the eraser or the pencil?