Have you heard of the latest trend in trying to get your attention to buy something? How about: undercover or stealth marketing, or better yet, and more truthful: viral marketing, or roach bait marketing. Actors and actresses pose as regular people and interact with the public, engaging them in discussion or making them aware of a new product. They can pose as phony tourists, locals in a nightclub, whatever. You can close pop-up ads. But if you're at the top of the Empire State Bldg, and a nice elderly couple asks you to take their picture with their fancy new quadro-quirk T68i cellphone...