Good idea! Draw them the "Thinking outside the box"[1] puzzle or something. [1] http://en.wikipedia.org/wiki/Thinking_outside_the_box http://en.wikipedia.org/w

Good idea! Draw them the "Thinking outside the box"[1] puzzle or something. [1] http://en.wikipedia.org/wiki/Thinking_outside_the_box http://en.wikipedia.org/wiki/Thinking_outside_the_box