Someone presumes to correct my grammar--and they're wrong! Case in point; the exceptions to the comma-between-doubled-word rule being "had had" and "that that." Changing "had had" to "had" or "has had" changes the meaning. Worse yet, "had, had" is COMPLETELY wrong. Wrongety-wrong-wrong-wrong. Look it up. I had to, so you can too.
11 hours ago