Haha, went to local college in georgia usa and did some studies with this lady in the math lab. After some time I asker her if she was British and she explained to me that she was american in a car accident following a short coma. She said when she woke up she was speaking like this, but she never noticed it until all her family kept asking her why she was speaking with a British accent. She said it felt natural and she couldn't tell the difference.