You are right, they are very careful, even when they live near people for a long time.
it is believed that if a fox comes out to a human, then she is most likely sick with the rabies virus. I don't know if it's true.
On this day, we out for a picnic to eat meat, I think she was attracted by the food, she circled around us for about half an hour )))
Cool. I'll take a note, when I'm in fox land, let's get the barbecue going. heheh I only saw one in the wild once in Norway, for like 20 seconds. But she was right next to us.