This is conversation between a pencil and an eraser ...
pencil : eraser can i ask you something,
eraser :yes you can.
pencil : why when i make a mistake or even a little mistake you will be beside me and rub all my mistakes and you will lose the part of your body.
eraser: its okay , you can buy a new one . i am created to rub all your mistakes.
pencil : aww , thank you very much my friend ! (tears drop)
THIS IS WHAT FRIENDSHIP IS FOR....