There are a few lessons that mothers want to teach their children early. And one of them is to learn to tell people to leave them alone. And so I did a little fist pump in the air when I was volunteering in Helen's class and saw she had made this sign, after a few kids were messing with a craft project she had brought for "fun Friday".
She said it didn't work as well as she had hoped, but she still posts the sign on her desk each Friday as she works on her craft project. And reportedly children are getting better at following it.