Only enough to make very poor people collect it. In most of the bigger German cities it is considered rude to put a deposit-system beverage container inside a public trash can, you are supposed to put them on top of below, or even in a special tray so that collectors don't need to use their little LED flashlights to search the inside. Some progressive beverage companies have even made it part of their brand identity to print instructions for easily accessible abandoning on their labels.