This happened to a friend of mine.....
He worked for a company that rented out tv sets, and he was the repair man. He went to a really run down house which has several tenants. When he knocked on the door someone shouted for him to go in. The man and woman were in the bed. She got out of the bed, went over to the part where the sink and cooker were, put the kettle on, then picked the dirty cups off the table, swilled them under the tap, gave them a shake, put them back on the table. Started to slice the loaf, put margarine on,then jam. Made the tea, then took a cup over to my friend who was busy taking the back off th tv (This was long ago, when tv's were huge square things) then she gave him a jam sandwich. John didn't like to say no, but the place was filthy, and the couple were very rough, so he said thanks, and carried on working. When he finished he put the sandwich into the back of the tv and left as quickly as he could. He said that he would rather leave the job than go back there again.