Until recently, I was with a european airline were it was common practice that the only complaint at the end of the flight, either written or verbal, was the flight deck requires cleaning. Not being flight crew, sitting there for several hours, being served trays of food and drink. I always wondered who actually made the mess that was so frequently complained about. In fact one afternoon there was an obstruction to the coloumn, a small empty, damaged coke can was jammed behind.
Breakfast cereal, biscuits, dinner on the floor and in the seat tracks, wet deposits on the pedastal, instruments.
Several times we disscused this subject and wondered what would happen during a decompression incident with this stuff lying around, whether this debris would lift and fly around adding to the problem....