Kid sees their grandma taking pills and asks... "Grandma, why do you need to take all those pills?"
"Well, Grandma needs to take the green medicine for her headaches, but the green pills give her diarrhea. So grandma needs to take the yellow pills for diarrhea but those pills always make grandma very depressed. Because of her depression, grandma needs to take the black pills, but those always give her high blood pressure. To cure the high blood pressure, grandma has to take the red pills, but those make her always very horny. That's why grandpa has to take the blue pills."
