As a child, I learned from somewhere that if you say something in the sewage hole in the bathroom (located below the border), it will be heard by the neighbors. And one day, taking water procedures, I noticed that the neighbors also have someone in the bathroom. Well, I did not think for long, as closely as possible, attached my face to this hole and said with a cartoon voice: "Hi! I am home!” I have never heard such a thump and cry of "MAMA-A-A" from the neighbors) Thus myths are born.