Not the London Fox. It’s a lot more diurnal now. They know which day of the week the garbage bins are put out and will often walk about quite brazenly in day time to scavenge.
There’s usually a fox sunbathing on my shed roof during the summer, if one of the neighbours cats isn’t around to claim that space.
I’m guessing Surrey foxes are similar.
But, yes, it’s also about their faeces. UK foxes love to defecate on small items rather than boring grass or flower beds. Leave a ball out in the garden and there’s a good chance it will have a fox turd on it the next morning.
Since both badgers and foxes are night animals I guess his children play at 01:00 during the night in his garden?