Makes my skin crawl.
One suspects that Herself has a serious anger management problem, and the appearance of the fixed smile or grin is a psychological trick taught to Herself as a way to mitigate the outburst of that sometimes explosive rage. This is almost as effective a signal to others as the characteristic “tell” of a mediocre poker player, which the other players at the table may use to “read” what cards he holds.
And Herself has exploded with rage rather spectacularly on numerous occasions in the past.
“What difference, at this point, does it make?”
I’m sure she turned off a lot of people with that tight grin (that never quite reaches her eyes). It just re-enforced her as being a complete phony faker.
"You think this is funny? men, women and childen were beheaded, and Women and girls raped repeatedly because of your incompetence"!