E.g. you figure it'll take a minute to take the trash out and wash your hands. But on the way you discover you run out of trash bags, and while washing your hands you run out of soap, then as you pick the refill bottle from storage some light items fall out, and you need to put them back into a stable configuration, then you spilled a bit of soap during refilling so you need to clean up, but you just run out of paper towels, and...