What is the loneliest thing you have ever done while traveling?

Most of the time I go out alone. If I ask a person what is the loneliest thing he has done while traveling, I really can’t think of it at the moment. Originally, "traveling alone" is a lonely thing in itself. If I have to say one thing, it is that when you want to eat at a local specialty restaurant, it is difficult to go alone. You can’t order a few dishes and you are afraid of being ripped off. Generally, you can only go to the snack street if you are alone.