A childhood belief about father christmas

I used to believe in Santa. My parents told me he just knew when little children were being naughty and would deduct a present from the sack he had put aside especially for me. Whenever I was naughty, Dad would call Santa to tell him about it. Although Santa was too busy to talk right then, he would always call back within seconds and Dad would pick up the phone with me watching, suddenly silent and angelic again. Years later, when I was about 10, I was told about a special number you could dial (in Australia) to test your phone ring volume. Dad said "It might come in handy when looking after your three younger brothers".