I found an interesting topic which is a little similar to Maciamo's experience, in that topic, the foreigner in China felt puzzled about why Chinese didn't talk back at him in Chinese. I'd like to post the link here, but I don't know if it's a proper way, if it is not, please delete my post.
Here's the link:http://bbs.chinadaily.com.cn/forumpo...l?toppid=28296