My work days average about 14 or 15 hours, including commute. That pretty much means, on work days, that's all I do. Maybe cook dinner... So, on my days off, I make it a point to try to give my wife a break from our almost-3 year old. I try to give her time to do things that she wants to... Yeah, that means some of my own training has suffered. I take my son with to the gym most days (they have a child care service), for example. I can't take him with me to class (yet). And balance seminars and other events... I don't always get to do what I'd like.
If your work days average 14-15 hours per day, when do you train in the martial arts? Are you on some sort of three day per week work schedule?