The Story of Pencil and Eraser

Pencil: You know, I'm really sorry.
Eraser: For what?
Pencil:Sorry,cause you get hurt because of me. Whenever I make mistakes,u r always there to erase them. But as you make my mistakes vanish,you lose a part of yourself. U get smaller and smaller every time.
Eraser: Thats true,but I dont really mind.I was made to do this.... I was made to help u whenever u do sumthing wrong. Even though I know,1 of these days I'll b gone n u'll replaced me with a new one. But I actually happy with my life. So,stop crying. I hate seeing you sad....