If you give Eileen some popcorn, she'll need something to watch, so you'll go downstairs and watch a movie.
During the movie she will realize that she needs to wipe her hands so you'll go upstairs and get her a napkin.
After the movie and popcorn is over she'll be sleepy and leave the napkin behind.
A week later Eileen will realize that she needs to go downstairs again where she'll see the napkin left abandoned a week before. After seeing the napkin Eileen will need more popcorn. And with that popcorn...another movie.
This is the story of what I am doing tonight.Top Gun [Blu-ray]