<sod >A motherâs letter to her tearaway 13-year-old son, in which she teaches him âa lesson in independenceâ by charging him for rent, electricity, internet and food, has gone viral â and itâs not hard to see why.< eod>< sod > Thousands of people have been sharing a motherâs embarrassing letter to her tearaway 13-year-old son, in which she teaches him âa lesson in independenceâ by vowing to charge him for rent, electricity, internet and food.< eod>