So if St. Patrick's ever fell on a Friday does that mean no guiness only lager?

Going back to the chap living on beer it's not only his liver that will suffer but he is going to end up with one heck of a beer belly. I didn't read if he was married or single but I can't believe that many wives or girlfriends would put up with that 24/7, I don't think he has really thought this through.