I don't think it will be in any contract, just a quiet word. And, to be fair, it probably wouldn't be those who deal with cones, etc. In South Yorks they sent the Enviromental Health arm of the Highways Dept for small animals or the knackerman if the animal was too big for them. But, as you say, it hasn't been an issue yet. I don't know where the men in black came from, but imo that is nonsense.