I work in an office with mostly university level educated people yet I'm constantly surprised at the state of the kitchen area (just fridge, sink, microwave and coffee/tea making facilities). A few people seem unable to place their mug or tea spoons in the dishwasher and just dump them in the sink. Some seem to run water into the bowl for their dirty mug to sit in until, well I'm not sure, maybe until it magically washes itself.
Now to the toilets - there is keypad entry so only us lot can use them yet these clever people often drop bits of loo paper on the floor (seemingly clean little pieces), surely normal people would pick this up? What is wrong with people?