Sleep when the baby sleeps
This well-meaning advice has been told to new parents since forever even to this day. But in reality when the baby sleeps is your time to do everything you can’t do when he is awake like eating or showering.
Spank your child
Spanking your children when they did not behave was a common practice in our grandparents and even in our parents time. Thankfully, today spanking is not recommended and is illegal in many countries.