Comma Chameleon

Punctuation marks confuse the shit out of me sometimes, to the point that I either overuse them, or don’t use them at all. I’m not really sure how it’s possible to be an expert in punctuation–I’m still trying to be more skilled in grammar, to be honest–but it’s always thanks to patient people like Rix, my editor friend, that I realize my punctuating follies and correct them.

But to those who don’t have an editor who’d reply to a “Do you think it’s fine to use (this punctuation mark) in this s...