Anyone of you guys see this video, I think it's funny

I just got chastised on another biker forum I posted this on. The guy asked, "What was I supposed to learn from this?". I replied, "You tell me". I didn't learn a thing, I just laughed. ;)
 
I believe (hope I got it right) the song is a very well known Polynesian work song. When these guys are in other countries, sailing on work boats, cargo ships, oil rig etc.,, they sing it, and if someone else joins in, they know they have found a fellow countryman. ;)