Did your S2BX get progressively moodier/crankier with age? Something that I have noticed with my W is the depressive, angry periods are becoming more frequent, and I am getting closer to a threshold of tolerance. She's always been like this, but it wasn't bad enough to afect my own mood until the last few years. Just curious if you or others living with a Type 4 have noticed this. I remember you using the term "Mr. Wilson" and that's a damn good description of what I get a lot of time. Did a search for this but I didn't get much back, you may have discussed this in the distant past but I can't locate the threads.