Sorry but how many work in the business. Scores on the doors is not perfect,but until something else comes along it has an important place.I can walk into a kitchen and have a good idea if it's ran correctly. The scores are done on a number of things how food is stored/kept cooked and recorded. As chef/manger you don't know when an inspection will take place. I have said many times before yo gain at least 4 stars is not hard. I agree washing of hands is very important,every where I have worked will treat it with the up most care,so to is plate pots and pans washing.In fact water temperature will be tested to insure the correct temperature.