It is just the last segment and it is me (the revenue part) that is getting off. It saves me flying home and then getting right back on the plane again the next day (saves time and money). I would not try to get credit or use the last leg to get back home at a later date because then I would be admitting that my companion flew without me and I think that is against the rules. I usually follow all the rules but this would really save me if it would work.