There are a few people who always urinate in the corner behind my shop and refuse to listen to my advice. What should I do?

Hang some warning signs on the wall like a corner, prohibiting urination and defecation. Violators will be fined. A fine of 50 or 100. In this case, you tell him that he is still doing it here. Well, there is no rose. , then you can punish him according to this regulation. If you say no, you can give or call the police.