2.2. Small Money, big impact? – Digital Tipping
Tips are often treated as casually as they are given. What exactly constitutes a tip can’t even be clearly defined in legal terms, but rather resembles a kind of “moral agreement,” as historian Winfried Speitkamp puts it. In his small volume Der Rest ist für Sie! (“Keep the Change!”), he has produced one of the very few German academic publications on the history of tipping.