pianoloverus The teacher in second video had several famous students and recently passed, so I don't think it's so appropriate to post that video.
I apologize if the impression left by this video is to blame the teacher. That is totally opposite to my intention. My very first reaction when watching that clip is I am that student who is having a hard time understanding and doing what the teacher want me to do, out of lack of skill, comprehension, and nerves. And the frustration by the teacher is real, something I can understand and sympathize.
I thought the contrasts of the two clips is, in a funny way, illustrating the fact that teaching piano is a tough job.