Is Giving Away Free Drinks a Bartender’s Friend or Foe?

Throughout my time behind the bar, I overheard some massive debates: should you use a scoop of sugar or a pour of simple syrup in an old-fashioned? National League or American League baseball? Can you really call it a Negroni if it doesn't have Campari in it? Now I have heard good arguments on both sides for all of these cases and I, of course, have my opinions. Tipping, however, is a topic where having an...