I thrive best on solitude. If I have had a companion only one day in a week, unless it were one or two I could name, I find that the value of the week to me has been seriously affected. It dissipates my days, and often it takes me another week to get over it.
In a perfect world, probably we'd never yell, we'd just be firm and dispassionate. But of course, everyone yells at their children.