How ethical is it to tell your boss and then lose all that time with your son. What ethics do you care more about? Making sure your boss gets all the time he thinks he's paying for out of you? Or your son getting as much time as you can give him? Are you more loyal to your boss than your son? If your ethics are driving you to cuck-out and screw yourself, it's time to delete your "ethics" and install new ethics. There is such a thing as fear of success, I'm hoping you don't have that fear.