Ever heard this line before? There are also some close variants, such as “Do you know who my mother/father/third cousin is?” If you haven’t, my bet is that you’ve never been a cop, or you haven’t been one for very long. There seems to be a never-ending and constantly-replenished supply of self-important jerks who believe that the rules and customs that the rest of us follow do not apply to them. Most of the time, dealing with these folks is just amusing, and has given rise to some great comeback lines. But last Wednesday, The Honorable Cynthia McKinney, Member of...