Not only did I think it was a BAAAAAD idea when I read the title, I think it's a worse idea now that I read what you wrote. You AND your dad need to realize, this is business. I can see that you don't understand it is a business because you are looking at him as your dad and you don't want to disrespect him. My 17 year old grandson (who has lived with us since he was 8) has helped me through the years and I treated him like a grandson, disciplined him as a grandpa and would take things away when he was acting like an idiot while working.... you know, like a normal boy does. lol Luckily for him, it never lasted over 15 minutes..... anyway..... I told him on January 6 when he turned 17..... if you want to work part time for me, you can. I will pay you x amount, when it is time to work I must treat you like an employee, you must treat me like a boss and you must treat this as a real job. So far, it's been going good. No arguments and he has done his job 98%. It sounds to me like your dad is looking at you..... like his son..... and that will never come close to working out for you, him, the partner or the business.