In honor of the grammar rants you’re currently writing, I thought you might enjoy this comic from xkcd:
As you’ve been reviewing rants, I’m sure you’ve come across the attitude of those who see it as a duty to correct those who mis-speak or mis-write. As well-intentioned as some of these people might be, it can’t hurt to step back and see how these corrections are perceived by others. And we need to be especially careful, I’d suggest, as teachers. More in class.