Culture Rebels, Cultural Faux pas,and Culture Vultures

I'd be interested in hearing whether any Poddies have ever found themselves being Cultural Rebels.What I mean is,have there been times when you've understood what the cultural norm in Chinese society would dictate in a certain situation but for one reason or another you've decided not to conform? If so,what was the circumstance and what was the reason? Alternatively,have there been times when you've made a cultural faux pas only to realise later? How much later?

Flip side:

Are there any culture vultures out there? [more Chinese than the Chinese] or do you know of any? examples?