I was intrigued by this post about clams from corvidology -- characters who seal up their emotions until they explode.  I have long loved the character type but didn't know it had a name.

I thought about my characters, and I'm not sure I have one of this type.  I have plenty who hide emotions and/or injuries, but I'm not sure they're rigid enough.  And Heron, who really is Vulcan-like in manner, is fully fluent with his emotions, just has a fairly flat affect.

So if anyone is interested in this, feel free to ask for it in any relevant prompt call.