As a side note to Spike's language AND the Buffy vs Barbie thread.....
We did have a SMALL problem with our daughter "cussing" in bad British slang for a bit. I was a bit terrified she'd get either tossed out of Kindergarten or, at the very least, we'd get to chat with a teacher who was more up on what things meant.
She KNEW not to say *itch, but things like, "wanker", "stupid git", and random uses of "bugger" had us kind of on the fence. The biggest problem wasn't that she USED the terms, but just like with other words it was the VENOM and appropriateness that she used them with.
When the kids were younger, we REALLY tried to not curse. Which is hard for me, because my family is BAD about that now that we're all older. But, we tried. We used the word "Pickles" a LOT.
We soon stopped that as soon as we heard her SAY, "PICKLES" in a way that you ignored the actual word and could hear her saying it with the strentgh of if she was cussing a blue streak. At that point, the actual WORD seemed to make no difference what so ever.
We struggled with the "Spike Talk" for a while. Right up until my Dad heard her call her bike a "Stupid Bloody Git" and pulled me aside to talk to me about it. I told him that it concerned me a bit, but the chances of us taking her to England were slim to none and so I was trying to ignore it and see if she'd stop on her own. He was of the opinion that she'd end up with a teacher who knew a bit more than elementary education and we'd be sunk. So, we had to put a stop to it.
As for SPIKE using the words, it doesn't bother me one bit. I know all too well that if you hang out with people, even for a short time, you end up picking up their slang.
I find myself saying, "bloody" a LOT more than a little girl from East Tennessee EVER should.
I do question a bit how Angel LOST his accent and Spike didn't. But, I also think that losing an accent has more to do with WANT than just happening. Angel may have WANTED to lose his where Spike just, didn't.
I know if I hang out with certain people I get a southern twang that would give my father a stroke. On the other hand, if you turn on certain movies (like Newsies) I can end up talking with a HORRIBLE yankee drawl that's almost impossible to understand.