{{{{{{{{{{{{Pat}}}}}}}}}}}} I hate it that someone as good as you has to put up with that kind of crap. Would it help to remember that when this guy gets ugly,
it's about him, not YOU ? I know, it's the fall out that's crappy, but just don't let it get under your skin.
Why worry if he's going to get mad or not? Go for the other job and if he doesn't like it, let him fire you or you can quit! The jobs are coming in now. You'll get a second one if you need it.
Onward and upward, Gal!
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Psalm 119:105 Thy word is a lamp unto my feet, and a light unto my path.