Oh no. I remember when I was living with my parents & my dad had a knee operation and took a month off work, it was so stressful, he became a nightmare because he didn’t know what to do with himself. The best thing your dad can do is discover his hobbies to keep him happy and busy. It can be a real shock for people whove been working all their lives to suddenly stop. It can also be a challenge for the people living with them too! Hope it works out well for you all 🙏