These had me rolling! I have sheep, and most of mine do yell like the 3rd one (especially when we're sorting) but I have never heard them sound like the first two. If we ever get one that sounds like that I'm going to keep it forever, lol.
I've raised sheep for 22yrs and I've never heard anything like those videos. People think the worst when you are wrestling one to check a problem or trim just one hoof. I can't imagine how many visits from the sheriff would result from that sort of noise.