Actually, SASless, I understood more of what you just said than I would if I was hovering over the Isle of Dogs listening to fluent Estuarine...
In Brum, even the bobbies had to pause before replying to any Black Country PC, just to make sure they'd interpreted everything correctly. As for Coventry; just make sure you use words of half-a-syllable or less!
(Completely unfair of course, but why let the truth get in the way of an old dit)