5) Your own “personal space” doesn’t extend to all spaces where you happen to be. Just because you are a pedestrian with a right-of-way doesn’t mean you don’t have an obligation to avoid holding up traffic. Just because you have an iPod doesn’t mean you have the privilege of being oblivious to your surroundings. Just because have one of those no-hands cell phones doesn’t mean you have the privilege of talking loudly while gesticulating in fast-food lines. Just because you and a friend want to walk slowly down the sidewalk doesn’t mean you should walk two abreast with the exact spacing necessary to keep people walking behind you from passing.
6) Some subjects, and some words, and some sights, and some behaviors, are not appropriate for general public consumption. No, it’s not okay to talk loudly in a public place about your sex life. No, it’s not okay to say “cr@p” or even “$uck” around other people’s children. No, it’s not okay to wear tank tops and short-shorts on airplanes.