Do You Hear What I Hear?

AT ONE POINT MY DEAF SON DIDN'T KNOW PAPER MAKES A SOUND SO; I SAT HIM IN THE MIDDLE OF OUR LIVING ROOM FLOOR; WITH EVERY KIND OF PAPER, PLASTIC AND FOIL I COULD FIND. HE LAUGHED WHEN I TOLD HIM ALUMINUM FOIL MAKES THE LOUDEST SOUND OF THEM ALL. IT TOOK ME ALL DAY, TWO NEIGHBORS, A FRIEND TO CONVINCE HIM I WASN'T TEASING HIM.