ronny its a recycle bin, we would get a warning here then a fine.

Sorry ... I missed the "Recycle" part... I assumed it was bins put out on the street, and someones dog had done it's business, and the owner had deposited in one of the ordinary waste collection bins.

I still think that a word with the person in question is the correct way to go?

If he is unreasonable, threatening, or rude, then the Police can get involved.