I'm pretty sure this isn't what you were looking for but.....

When I was 18 (in 1980) I went on holiday to Blackpool and had a tattoo of a dragon on my right forearm. At that time I knew nothing of China and had no interest in China. It turned out this 'dragon' had no wings and so is a Chinese style dragon.

In 2003 I met my future wife,  (I won't say exactly when she was born for fear of serious injury to myself) but,............. you've guessed it.................. she was born in the year of the dragon.

  Also not sure if this is what you're after but I did have revenge on someone once in a sweeet way. Not sure if it was karmic, but anyway, I was in Yangshuo ten years ago, living and teaching. One night me and my flat-mates had a party and during the party a favourite Swiss army travel knife of mine was stolen. The next day I was sitting with a group of about eight people, all of which had been at the party and I started to get the idea that the guy who stole my knife was sitting at the table with us, because there was one face I recognized from the party sitting with us, and he was looking shifty as I was talking about my stolen knife.

  So what I did, watching this guy carefully in the corner of my eye, was I said "Ahh, I don't really mind who got my knife, I know who it was anyway. It was a rat. It was just some stupid rat who doesn't know how to do anything else." I was laughing a bit now because I could see this guy was getting angry.

  "Yeh, he's just a worthless rat. His mother was a rat. His father was a drunken rat. And when he has kids, they'll all be nothing else but a bunch of stinking, stupid, dirty, thieving, shitty, fucking rats too" and at this point the guy suddenly slammed his hand down on the table and shouted furiously "NO!" Everyone turned and stared at him confused. He stared at me like he wanted to kill me and then got up and stormed off. He had no choice: admit to thieving or swallow it.

  'Twas sweet revenge.

I was driving along in typical Chinese bumper to bumper and door handle to door handle traffic one day.  There was this one Jabba behind me in an Audi A6, he was driving very aggressively and trying his absolute hardest to get around everyone, no matter how much of an asshole he had to be.

Needless to say, this is one of my favorite driving situations because I absolutely love doing what every I can to frustrate the hell out of a driver like that.  I managed to keep him from passing me for several blocks, then when we came to a roundabout, he saw his chance and jumped the sidewalk in order to finally pass me.

Karmically for him, there was a motorcycle cop who just happened to be parked there with several other of his uniformed buddies.  The Audi A6 plowed right into the cops motorcycle (thankfully the cop wasn't hurt too bad as he sprang right up).  

The cops pounced on that Jabba faster then he knew what was going on.  I just smiled butterflies and rainbows at him and continued on my way.

In the middle of biggest Kaiping street, just by KFC

young, beautiful women, dressed in expensive clothes, going out of the taxi and  throwing small plastic bag with trash (obviously that was the leftovers after lunch) on the street

.. then stepping in some trash that was thrown on the street before

view of those white boots with "beautiful" "golden" adds... full of rest of half-eaten dofu and probably some dim-sums - unforgettable!

(but She still remained poker-face)

an old man sitting front of the bus and the young driver scolds him for not going out the middle door exit and holding up his schedule, the arguement breaks out and im waiting to beat the shit out of the driver if he touches the old man, the old man goes out front door and right back on the bus 3 times and then suddenly the old man takes the walking cane and hits the family jewels square between the legs, damn i have to catch another bus.