That probably works great for your children, and I'm very happy for you, but not shouting works a treat for me. If a child slept through shouting that was loud enough in my house to be heard (we have 3 foot thick stone walls) I would be worried about their hearing.

Also, I mean this in the most polite way possible, but unsolicited parenting advice is often not received as well as one might hope.

If you're yelling enough for your children to no longer wake up from it, your neighbours will typically call a social worker.

I doubt they'd call the social workers over yelling "Mr. Watson come here - I want to see you."