Well, Ann ... Now that he had had some time alone, perhaps we can have a little "intervention" of sorts and approach him?
I know this may be "extending" the rules a bit, but his knowledge, commitment and dedication shown to this community -- despite his seemingly irrational explosion -- might pay off for all of us.
Just a thought. I know you have his #, and maybe you can give him a jingle or send him an e-mail.
WaterTiger