Back in the early 90s, I was young and working for a startup. I had a fiery and seasoned boss, who knew what he was doing and had very little patience for bullshit. One day, I decided I knew better than him, and implemented a solution that was way outside the spec of what he had asked for.
The next day, I came into the office, and he asked me what I had done. I gave him some snarky answer about coming up with a "better" solution. It turns out I had wasted a huge amount of people's time with my "solution" and it had become a giant pain in his ass.
He screamed at me so intensely, that I swear I saw a new vein bulge out of his forehead. He then proceeded to kick a full-height metal filing cabinet so hard that he broke his foot. I went to the bathroom, collected myself, fixed the problem correctly, and we never spoke of it again.
Would I have been better served with a PIP and a bunch of HR meetings to discuss my insubordination/personality problems? Probably not. In hindsight he did me a huge favor straightening me out. We're still friends to this day.
Sure, the new world of kindler/gentler CoCs sounds nice, but sometimes it takes hard people (with thick skin) to get the job done.
Sometimes people just need to be told to shut the fuck up.