Most commercials will tell you to buy their product. However, there's a small subset of commercials that implore you not to buy the product advertised, because it's harming the person or thing making the plea. Won't you please think of us and don't buy this wonderful product?
An attempt by ad executives at Reverse Psychology. Call it one of the "perks" of living in a post-modern world, and try [...] [tvtropes.org]