Well, I was the One that was scolded. Because I basically took over without asking permission to fix a critical outage.
I fixed it within 3 minute, while the person in question have been trying for 2 hours.

He then got very angry and told me infront of everyone that "dont ever help me out".

Said and done. I never helped him ever since, even if he clearly struggled with everything.
He got fired recently due to incompetense