Same here! If I've been in the mode of one language for a while it becomes physically hard to switch. I even pronounce my own name differently when I tell it to an English person, simply because there's a different spectrum of sounds I currently have available. I'm not doing it for the listener's convenience, but because switching pronunciation (and voice pitch, and rhythm, and...) for just a word or two would require too much effort to be worth it, unless I'm trying to make a point, and it wouldn't happen subconsciously, either.