I have a Fox that regularly visits the bottom of my garden on his evening wander and I put an old pan there to feed it. It generally gets meat or fish that has been in the fridge too long or bones etc. The other day I had some chicken broth and chicken fat that had been in the fridge a while and I didn't fancy and I put that out for it .I've just looked and it's had it but left the biggest s##t in the pan I've ever seen, as if to say 'that's what I think of that offering' .
Now call me old fashioned and my habits aren't exemplary but if there's one thing I've learnt in life is 'never s##t where you eat'. Silly Mr Fox.