Guests who carry food from the food prep area next to the sink which is very easy to clean up, to the furthest point from said area which is a real pain to clean up, and slop it around over there before taking it back to the food prep area. It happened again yesterday with someone who carefully carried a large dish containing gravy to the opposite end of the kitchen, slopped some onto the bench there, then carried it back again to where it started out.
What are these people thinking? They're actually putting in extra work in order to also create extra work for someone else.