The article discusses the worst customers for dumpster pad cleaning services. The first segment focuses on clients who are uncooperative and do not follow the company's instructions during the cleaning process. This can be challenging for the cleaners and waste their time. The second segment discusses the clients who do not notify the cleaning company in advance when they will have large amounts of waste to be removed. This can result in delays and inconvenience for the cleaners. The final segment covers customers who expect immediate service but are not willing to pay extra for rush orders.