I was shouting at network guy/colleague, how come challenges.cloudflare.com got blocked!! damn, I must apologise to him.
Yeah I don't think you are using this phrase correctly
Shouting will not prevent errors, and you are only creating a hostile work environment where not acting is better than the risk of making a mistake and triggering an aggressive response from your part.
There is nothing wrong with shouting during a perceived outage. Shouting is just raising your voice to give a notion of urgency. Yelling is different.
How often have you heard "shout at me", or something like that?
OP, continue you to shout when its needed, just don't yell at people you work with ;)