"Can man live on maids alone?"
Well, according to recent research, the human body contains roughly 125,822 calories (that humans can process, anyway); assuming you can preserve it with minimal loss and eat every body part, that's roughly 50 days of food. This assumes, of course, a male cannibal with a really good fridge/freezer. So if a man can commit murder roughly every other month or so, yes, man can live on maids alone. Well, until he gets horrible prion diseases and dies, anyway.