Back in the 1970s I rented a duplex and had a buddy room mate. We were typical young guys and ate a lot of meals standing next to the trash can in the kitchen. One day we loaded up the dishwasher and it made horrible sounds. Being guys we took the dishwasher apart and found several shirt buttons blocking the pump. There were several pins and broken buttons. After we put it back together it ran fine. We mentioned that to the landlord and he said the apartment was rented to several Iranians before us. He said when they left the house was a mess and there were several shirts in the dishwasher. They had been using it as a clothes washer.