The creepiest part about the Shankin' Sifu is the fact that the cameraman seems so excited at the prospect of stabbing someone with an icepick on a crowded sidewalk.
"YEAH YOU CAN TOTALLY STAB A ************ IN THE FACE AND NO ONE WILL EVEN NOTICE HAHAHAHA!!!"
Looks kinda impractical to me. For example, I think it was in the middle of the video where one guy 'attacked' while completely rooted (immobile) in the front lunge stance. WTF. The only people who attack like that are the people in your shitty dojo.
Anyone with minimal real fighting experience or a week of boxing/muay thai, will not attack like that.