I live just outside north london and spend alot of time in north london, when driving back from nights out there is foxes all over the place...right across the road from people at kebab houses waiting for scraps etc!! I'v parked up before and got out the car and right on the other side of a picket fence was a fox rooting through rubbish, didn't care about me at all, No fear.
Also I'v heard of kids all over london going out with there dogs at night on urban fox hunts.