I would think that fox has lived with humans, either as a pet (never a good idea) or in some type of rescue shelter. I don't know much about wild animals other than my mother called us that when we were kids. Ok. Not exactly true. I know a little bit about wolves and coyotes.
Well, now I'm curious and have another tab opened where I'm reading about foxes. One site says they're friendly until adolescence or just after. Another site, dated 2012, says and I quote, 'FOXES have been spotted in the centre of Paris – even in the Jardin du Luxembourg and the Place de la République.' Fox coats anyone?
Most everything I've read has referred to the fox as 'opportunistic' in terms of its dining experience. Per the National Geographic, 'Foxes will eat fruit and vegetables, fish, frogs, and even worms. If living among humans, foxes will opportunistically dine on garbage and pet food.'
So I'll leave it there and say no more other than my first sentence might not be true.