Sangria

Susan loves sangria.
She makes it exclusively with cheap red wine and whatever fruit she happens to have on the kitchen counter, except bananas.
She adds plenty of orange juice.
Her little sister prefers to use orange soda.
Lately Susan has been adding some homemade limoncello, which is essentially pure alcohol infused with lemon peels, and simple syrup. It adds a wonderful tarty sweetness. However, Susan's little sister commented that it made the sangria too strong. So, in went more orange juice.
Susan has a bottle of Portuguese firewater
which is totally undrinkable and when added to sangria,
it makes that undrinkable too.