Tatze shouting at Keir because she wants to go on the bed - she does this to Zaba too It worked! They are a pushover, these boys
It sure doesn't LOOK like it's going to work in the video - Keir is completely ignoring her! I agree with @Joy , I think Keir just got up and moved to be in the sunshine. Nothing to do with shouty Tatze. By the way, before you, I never thought of barking as shouting. Now I use that all the time, even when talking about yowling cats. I said that recently to a non-UK person ("He was being really shouty today") when talking about a dog and he looked at me like I was nuts. But I don't care, I'm proud of my Mags' Speak.
So sweet! Snowie does the same when another dog has his ball. He won’t grab it away, he’s too polite for that and will wait and wait, and then eventually he’ll shout at the other dog. Only difference to Tatze is that his bark is deafening and the other dog usually drops the ball in shock!