I had started a load of dishes in the dishwasher before I left for the store. My dishwasher is very loud so I don't like to be home when it runs.  The dishwasher was quiet, and a green light indicated "clean" so I knew the dishes were done.  I opened the door of the dishwasher, and slid the top rack out.  The top rack was full of glasses and mugs and Tupperware containers.  I stacked the glasses and mugs two-by-two and put them in a cabinet.  The Tupperware containers still had a bit of water in them, so I put them in my drying rack to air out.  Then I slid open the bottom rack, which had many plates and bowls, as well as a case of silverware.  I took the silverware out, placing each utensil in its proper drawer.  Then I took out the bowls and plates and put them up above in a cabinet.  I felt accomplished having finished a chore. 
Question: Did unloading the dishwasher make them happy?
Yes, they had a feeling of accomplishment.