I used to get that lonely Saturday night feeling, but not any more. I've now got a routine which I go through nearly every Saturday, from getting up early, doing my shopping before the shops get busy, going for a long run, going to the football in the afternoon, making a curry for tea and then relaxing at home with a bottle of red wine in the evening....all by myself. But I really like my Saturday's, even though they're nearly always the same.
I have occassionally tried going out to "join in the fun" that everyone is supposedly having, but I hate the Saturday-night-on-the-town scene. I just don't need it and it makes me miserable. It's mostly just a bunch of loud, drunk, arrogant, thoughtless, boring morons that are dominating the Saturday night scene anyway, so I have no desire to be anywhere near them. And I avoid Saturday night "talentless show" TV at all costs too, as it's the same people on there.
btw, re the rude postman, he probably has a timetable to stick to...everything is about measurable performance targets thesedays. And perhaps he was too shy to talk so was just making excuses that the had to run.