This is also known as the parental tantrum. It is never an effective tactic in enforcing your expectations, except to the degree that is scares your child into immediate compliance. When we do this in adult relationships, it erodes the relationship. When we do it with our kids, it also erodes the relationship--so kids act out even more. It also scares the child, so it adds an overlay of tangled-up feelings that the child will then end up "acting out" by misbehaving. If screaming worked, we would not have to repeat it. Screaming is a symptom that you've slipped onto the low road of parenting, into fight or flight, and you're seeing your child as the enemy. Our child is never the enemy, no matter how ugly he's acting. He's a very young human with an immature brain who is signalling that he needs our help.
It was that "parental tantrum" that caught my eye. It really resonated with me. Will I stop screaming? I think it will take awhile, but I also think that quote will really help. Hope it helps someone else too.