Son comes to visit his father who he hasn't seen in years. While helping with with dinner the first night he notices a spot of something on a plate and mentions it to his father. His father says it is a clean as cold water can get it. The next morning the son notices some other spots that look like dried food on some of the plates. Again the father says that it is as clean as cold water can get it. The son was just not comfortable with eating there for dinner and on leaving noticed that the dog was still out in the yard. The son mentioned it to his father and the father says... "Come here Cold Water, Get in here".