My wife likes it but it drives me up a wall
Heh, I hear that 8)
You remind me of a friend of mine that has very mild turettes (sp?) syndrome. You'll just be talking to him and esp. with the speed his face gets all weird and twitchy. It's hilarious.
Jaw clench, IMHO, is one sign that you didn't let the reaction run long enough. Tooth grinding and jaw clench are the same problem described in different terms. Originally I blamed high reaction temps for jaw clench, and high temps may help create byproducts that cause jaw clench. I later encountered the problem in some reactions that had not been done at what I consider a higher temp, and realized that jaw clench was generally associated with incomplete reactions-- reactions where a good portion of the pseudo or E was reduced to meth, but which had a good percentage of unreduced intermediates. This is dope that would have been much better if refluxed at least twelve more hours.
I jaw clench on Desoxyn