I don't have a microphone attached to this computer.
I used to be able to speak Cockney too, yes — albeit without the rhyming thing — but that was a very long time ago, back when my main English was still Oxford. I haven't spoken any Cockney anymore since, and there's a good chance that if I were to try, it would quickly shift into Aussie English. This is a quite normal neurological phenomenon among people who speak multiple languages, especially if those languages are very similar.
I do indeed speak multiple languages — i.e. English, Dutch, Afrikaans, French, a bit of German, and a few words/phrases in Spanish, Italian, Japanese and Russian — but given that we're talking of multiple different dialects of the same language, this crossover effect is very real in my case.![]()