Getting ready to do homework yesterday afternoon. Harry finds a pencil. He sharpens it.
Pippi eyeing the pencil: Hey that's my pencil
Harry: But it's got a good eraser.
Pippi: I know - because it's brand new, and I don't want you using it.
Harry hands it over. I find him another pencil and hand it to him.
Pippi: That's mine too.
Me (after finding another pencil): Does this belong to you Pippi?
I go to sharpen it.
Harry in the meantime opens the drawer to find a writing instrument. He comes up with a pen.
Harry: The pen is mightier than the sword.
Me (Taking pen from him and replacing it with pencil): Yes - but you're doing your homework in pencil.