I think it was Ajhan Chah I was reading when the point was made that one should be aware when passion rises. The arising of passion is rarely skilful and can be considered a warning that attachment is active or that ego is threatened.
My apologies for asking that this thread be left open. I did learn some more tick-related and precept-related things to consider. For that I thank everyone. But I regret the position-taking, position-defending and other words that seem to have been designed to demean others. I almost joined in to straighten some folks out - which would have helped a lot, right?
To those always alert to credentials (and rightly so, IMHO), here they are. Recent Buddhist, long time faded-glory in several fields, easily tempted into an argument, so far away from stream-entry that I'll die of thirst before I see the stream