Never expected this to be such a huge hit when I first view this video. Even covered by CBS news: http://www.cbsnews.com/stories/2006/05/25/ap/strange/mainD8HQSOQ80.shtml. There is very detail Chinese wiki covering the full story with links to all spoof video. The english version of that wiki is pretty detail too: http://en.wikipedia.org/wiki/Bus_uncle
It is quite amazing to see how technology has changed our life. Probably may just 2/3 years ago before the popularity of mobile phone with video capturing support. Such an incident could have happened and no one would have cared much. But combing video and the ability share that on the web like youtube.com. Such an incident become the talk of the town in HK. Definitely feel like I am being constantly watched 24 x 7 after viewing such kind of video.