— Jesus Shuttlesworth (@AlmighDee_) July 11, 2016
For the unfamiliar, Vi Hart makes fabulously fun-entertaining-educational Youtube videos about math & geometry, doodling, food and music. (No, you needn’t have aced calculus to understand them; my 7-year old grandson thinks they’re awesome.)
Once in a while she takes a tangent, such as this episode, Vi Hart’s Guide to Comments, where she explores ideas about why people make different kinds of negative comments, possible reasons for reacting to them, and how best to respond.
I thought one analysis was particularly insightful:
Type #2 DIRECT SHALLOW INSULT
Commenters like these are thoughtless and bored, and obviously don’t have very high self-esteem. They’ve been taught to be normal, so if anything’s different about you, well that’s not allowed in the rulebook they know.
But in the anonymous internet context, I don’t think the usual explanation of them trying to put you down to make themselves feel bigger quite cuts it. They probably don’t see you as a real, live person, and would never make the comment to your face, so it’s not about putting you down.
In fact, their comments aren’t aimed at you at all.
They comment to pretend that they are not just wasting time on the internet, but being active participants, discerning in their tastes. Their commenting justifies their watching, and just like voting in American Idol or tweeting your local news, their opinion further invests themselves into their identity as a judge, observer, consumer. They have been taught to be vocally judgemental by the people for whom judging means watching, and watching means money. Plus, other commenters might reply, refuting their insult, which proves their comment matters.
As with other types of comments, she then proposes ideas for why we react, and what to do about the comment: that is, just let your eyes glide past them and move on.
The whole video is superb! (Also, she has fun playing with wax on her fingers.)
Auto-generated CC has some glitches, as usual.
This is absolutely inexcusable!
A young woman, Hannah Cohen, has had a tumor removed from her brain, which combined with radiation treatments has made her blind and deaf on her left side, along with limited speech and mobility. She and her mother were flying home to Chattanooga a day post-anaesthesia from another treatment at St Jude hospital. 
And then the metal detector went off.
“They wanted to do further scanning, (but) she was reluctant — she didn’t understand what they were about to do,” said her mother, Shirley Cohen.
Cohen said she tried to tell agents with the Transportation Security Administration that her 19-year-old daughter is partially deaf, blind in one eye, paralyzed and easily confused — but she said police kept her away from the security agents. 
Disoriented and confused from the metal detector alarms and being grabbed, she was forcibly manhandled hard to the floor making her head injured and bleeding.
Worse, the TSA and Memphis Airport Police did not heed her mother, Shirley Cohen, who repeatedly tried to convey necessary medical information about her daughter, and ensure accommodations.
Two guards grabbed her daughter from both sides, the mother said.
“It freaked her out,” she told The Commercial Appeal. “They didn’t listen to me at all. When they grabbed her, it scared her, and she was trying to get away from them. The next thing I know, one of them slammed her down on the floor and busted her head open. There was blood everywhere.” 
The young woman, who was returning home after finishing treatment for the brain tumor at St. Jude Hospital, was arrested and booked into jail.
Authorities eventually threw out the charges against Hannah Cohen, but her family has filed a lawsuit against Memphis police, airport police and the TSA. 
I saw some people eating over at the grocery dining area the other day. Some were just-barely adults, and others were of that great, vague realm of middle age. They were louder than necessary, sloppy, and left a mess. Not that my budget was going to let me buy a hot lunch to eat there anyway, but it would have been unpleasant to sit near them. I sighed inside; it “was like old times” and I wondered what had become of some of my former students.
When I worked with the secondary school students (ages 12-18), I often wished that in our smaller school cafeteria we had full table service — like Hogwarts — so we had a more home-style or nicer environment to teach and practice basic manners. No, seriously. Some of the students were fine, some were simply hungry kids who (being young) weren’t concerned about niceties, and some couldn’t help that they were uncoordinated or dyspraxic.
But all the students were all there because they had severe behavioral and emotional problems. And a good many either did not know, or did not care, how to eat neatly and politely. Instead, they went through a cafeteria line loudly, bumping into people, leaving behind a trail of dribbles around the serving bins, then dropped their possessions about the table and floor, eating noisily whilst conversing inconsiderately, and generally making themselves and the table a mess.
(Perhaps saddest was when someone despoiled a perfectly good piece of fruit by pencil-stabbing or bruising it. There were people there – students and staff – who would have gladly eaten a spare apple or orange. So we tried to intervene and rescue the produce for classroom fruit bowls that existed for the hungry.)
On the other hand, this was one of their few times for all the students to just relax, talk with friends, and recharge for the afternoon. Everyone needs opportunity to take a break, so we eased up from constantly supervising and redirecting, albeit still watching out for unsafe, disrespectful or irresponsible behavior.
But if there were something more like a real dining situation — instead of what amounted to a scramble at a fast-food joint — the following would have been the basic skills of politeness I would have them learn. And they are, very basic.
Note that these are mostly phrased as what TO do; this produces much better learning results than just telling what not to do.