Alas poor Nick,
Such a thankless task.
Grammar is a pain and the bane of many story tellers. I myself am a consummate abuser of commas. Yes there are rules. It's best if we know them as they help make the language a rich and flexible means of communication.
It is also possible to bend and break those rules and still tell a good tale. It's just that if you do it without purpose you might look a little foolish.
Hey, that's never stopped me.
Perhaps that's why god created editors on the eighth day.
Just a thought
Mad Lews