That's because of all the damn yankees that have invaded us in my lifetime. Most of 'em have no manners and don't know how to behave themselves in polite company. They move here to escape their northern s**tholes, then immediately start creating the same problems here.
To you, that is most likely a valid perception of New Englanders or Northerners in general. But when New Englanders do make friends they are friends for life no matter what! My best friend to this day is a kid I met in my neighborhood when I was 9. Our families consider each other relatives. Yes- New Englanders are hard to make friends with but if you do- then there is no better friend in the world!