Many years ago, I reported to the police an old acquaintance who was involved in the heroin trade. I felt a bit guilty for betraying him, so I told him what I had done. One evening, I was walking along a dark street and a carload of guys. with him in the car, drove by real slow, taking a look at me. I reached into the pocket of the oversize coat I was wearing; they drove away. Bluffing might be option when dealing with potential or actual drive by shooters. I was lucky that night.