There is definitely a difference in the accent of those from Burnley.....wayer, over thayer, on the stayers.
I can also tell if a person is from Blackburn or Darwen, they have their own slight accent
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Old aunts used to come up to me at weddings, poking me in the ribs, cackling and telling me
'You'll be next.' They stopped when I started doing the same to them at funerals.