National Lampoons Family Vacation - Cleaning the Dishes Right, Clark?
In the beginning of the movie when Ellen and Clark are doing dishes, notice that Ellen just scrapes the dishes, and then Clark just wipes them with a dry towel and puts them away. You would think that they would at least use soap and running water.
Pretty sure that that was supposed to be in there since it is a comedy! Get it? He's helping with the dishes but since he is Clark W. Griswold, he has no common sense and is forgetful so he scrapes the dishes and puts them away, forgetting to do the actual washing.
Yeah, it was done to show what kind of a guy Clark is; really unobservant and oblivious. I just laughed when I saw it because I know what they meant, but otherwise it would have been a slip-up though.