I used to be cynical about how STUPID chickens were because of my family's attitude toward the birds....but when I moved to a rural area allowing chickens (and got a fair few,) I realized how wrong I was in my younger years.
My favorite bird, Roopert truly likes me, and I'd even call it love. Before I fixed the height of the gate in one area of their pen (it had wood on the top and was only four feet,) Roopert would jump the fence...come to the back door, peck at it, and wait for me to come outside to hold him.
He knows his name, "defends" me from other birds (gets jealous if I try to pet anyone else,) and is wonderful with my kids. I know he's a rooster and am always cautious...but have never had to really worry about him acting aggressive.
Thanks for sharing the video...very insightful.