Thanks to a reader tip we were able to find quite a nice story of an expat man getting his comuppance in the form of a punch to the face for his douchebaggery.
Here's the article in a paraphrased and edited form. To read the original please click here.
Last night I was sitting at a bar in Yangshuo and a Canadian bartender from a bar across the street comes in completely hammered, sees all of us sitting around and asks us why we were all there. He tells us that he knew a bar up the road packed full of beautiful girls and that we should all go there. He then leaves.
Ten minutes later he returns holding his bleeding bottom and told us that someone had just punched him in the face. When I asked who punched him his reponse was classic, "a girl who apparently doesn't want to have sex with me!"