Bob Greene : On a cruise , if a guest cabin goes unoccupied , that 's money that 's lost . Greene met a man who was living virtually full-time on cruise ships at rock bottom rates . He said he had to pay for his own food and drink because the ship didn't have enough staff or facilities to provide them. Greene : The downside is that you are cast adrift in many ways .
Bob Greene : On a cruise , if a guest cabin goes unoccupied , that 's money that 's lost . Greene met a man who was living virtually full-time on cruise ships at rock bottom rates . He was living the ultimate beach-bum fantasy , 21st-century style , Greene says . Greene : The downside is that you are cast adrift in many ways .