Our meltdowns, social ineptness, and misunderstandings can scare people, cause us to get fired, lead to a burning of many relationship bridges, and sometimes even cause the police to get involved.
We say things people find very tactless and perhaps outright mean.
There is a tendency to constantly correct people's errors, even in situations where emotional understanding is more desired. For instance, I recently corrected an older woman (in her 70s) for complaining about the alleged accuracy of a news link article. She thought the news link article I posted was incorrect. I messaged her showing that it was incontrovertibly correct. She was totally wrong and didn't want to admit it because it was a sensitive subject, and she thought it was socially inappropriate for a youngster like me to "admonish" her. I guess I should have just let it go, but at the time, it was too hard to resist the urge to let her continue to remain in ignorance on that particular subject. Had I read social cues properly, I would have realized that it was useless to try and correct her regardless -- she had her mind made up, she already was condescending to me over my age, and no amount of proof on this matter would have satisfied her, because she was already biased to disbelieve.