Unfortunately, on one of our cruises we encountered a "very" entitled person who not only thought they shouldn't have to wait to use a machine, but thought it was just fine to take our clothes out of the dryer while it still had time on it, put our still very wet clothes on the table, and proceed to dry their clothes on our dime.
Trust me, I never leave our laundry sitting there and this time had only stepped out of the laundry room to go back to my room to grab hangers. However, when we returned with what should have been more than 15 minutes left on our machine, we were stunned to see our wet clothes laying there. Well, we were not so "courteous" with their clothes. I took them out of the dryer, promptly placed them on the floor next to the machine and then put our clothes back in so that they could finish their cycle. Of course, we had to add money to get them dry since we lost 15 minutes.
Flame me if you want, but in that case that person did not deserve any courtesy. They not only "cut in line", but they stole 15 minutes of my dryer money by doing what they did. I was stunned that they thought they could get away with it.
That's not a lack of courtesy. It is theft.