"...but infrequent/involuntary screaming by a very senior exec does happen,..."
After about 30 years in the industry, I suggest you reconsider your experience. The only place I've worked that had any kind of executive screaming was IBM, which was completely disfunctional.
Someone who involuntarily screams at a coworker is someone who needs help.
There's a difference between one-off and frequent. Very big difference. A question to everyone: You screamed at anyone, ever? Oh, you screamed once, 5 years ago? Now you're a bully.
Of course if you scream you are a bully. Because you can only scream to someone in a lower position than you, by definition, and that is cowardice. You become outright hostile and let loose your childish immature selfish self because you feel safe and powerful enough to do so. That, is dysfunctional and unhonorablr and that's why I never scream.
After about 30 years in the industry, I suggest you reconsider your experience. The only place I've worked that had any kind of executive screaming was IBM, which was completely disfunctional.
Someone who involuntarily screams at a coworker is someone who needs help.