Seems to me that unless they've lived and travelled in the lovely British Isles for a good while, no septic tank yank is going to be able to discern the difference - let alone being able to accurately recreate it. (And, no, being a Monty Python fan doesn't help.)
And yes, I for one am one of those "septics".
-D'Artagnian
I think I can discern Cockney from the rest, but I couldn't correctly recreate it.
For the uninitiated, "septic" comes from rhyming slang.