...and As usual, TCR is late for the party!... Everyone's gone... Damn it…
From everything I've read, I'll probably end up repeating things here. But... Repeating is my middle name, so…
Honestly, I feel this whole blog editing advice is bull for this. Ending it to make up for a lack of style? Huh, wonder if anyone told King or Crichton or any number of other major authors that used a slamming door or other (as much as it wasn't used in the post) over the top actions? If, and this has been pointed out, the character in question is naturally hot headed and prone to outburst, or even if they aren't but emotionally it has set them off in that way so it feels natural, then a slammed door is a good indication.
This isn't lazy or a lack of style, this is making a human character be human. Humans are, mostly, emotional creatures, for better and worse, and, as such, react emotionally. If it's set up that A has pissed B off to the point B is fuming like an erupting volcano, then have B erupt.
That said, in my questionable opinion, it has to be set up properly. Having an argument that reads like a pair of old grandmas having tea end with a door slam probably isn't the most likely…
That said, I'll stop rambling now.