Stressed Bus Uncle Gone Wild

I watched a video in a discuss group a few days ago, it's about a fight between a mid-age uncle, and a teenager. The fight starts because the teenager pats the uncle's shoulder and complaints that the uncle talks too loud on the phone. Then the uncle reacts furiously, and scolds the teenager.
Now, this video is very popular in Hong Kong, so I wanta share the video with you guys.
Here is the link: Bus Uncle
Dont' worry, the video is in chinese, but it has english subtitle.
And more ridicious is that, people make T-shirt with this topic~