This document discusses ambush marketing, which is when companies associate themselves with events or celebrities without paying for sponsorship rights. It provides examples of ambush marketing at the Olympics. The document argues that ambush marketing provides competition for large sponsors and allows smaller companies to market at lower costs. While sometimes seen as unethical, the document claims ambush marketing is a legal tactic as long as companies do not use prohibited words or infringe on trademarks. Forms of legal ambush marketing include advertisements near events and using athletes to promote brands. Overall, the document takes a pro-ambush marketing stance, arguing it creates competition and opportunities for companies in an otherwise restrictive sponsorship environment.