I can't seem to get the video to play on that website. Oh well.
The one thing about inmates is that they are human also. Not everyone is in there for rape or murder. Some may be in there for lesser charges, such as DUI or Child Support. (On an aside, I've had so many inmates complain that if they were not drunk/under the influence that they would have never done what they were arrested for.)
Inmates are people too. I've dealt with more than a few incidents where one inmate starts to get angry with me and the other inmates yell at said inmate to settle down. A lot of them just want a nice quiet time.
But then, you do have the inmates who have anger issues, mental health issues, or just want to be "gangster." They are the ones I have to write the reports on.