Another reason for the behavior is that he could have been laid off or fired in that meeting. You may find out Monday morning when he is not at work when you need to talk to him. Having gone through 2 layoffs, I can tell you that usually, you feel cut off from your co-workers at that point.
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Louis J Bouchard
Rochester Minnesota
"Only when all those who surround you are different, do you truly belong."
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Fred Tate Little Man Tate