One businessmen were talking about advertising on TV excitedly. As none of them had ever done it before, everyone had his point of view. At this moment,Mr. Grey arrived. He was a car dealer and once placed an advertisement onTV. What are you talking about？ Mr.Grey asked. Does advertisement work？ one of the businessmen asked. Oh yes, it works very fast, Mr.Grey said. I once advertised for my lost dog and offered a reward of 100. Did you get the dog back？ No,but that very night, three of my cars were stolen.