That brings something to mind for me. Many years ago, I had a pain in my back between my shoulder blades, a horrible sharp pain that I described to the doctors as the feeling that someone was stabbing me in the back with a big knife.. For awhile, it left my right arm useless and I had to have PT to regain the use of the arm and get rid of that pain.. About that time, it became known to me that someone at work WAS doing a lot of back stabbing to a lot of people and I was on that list (and he was doing some really serious back stabbing!).... EVERY TIME since then, that the pain came back (off and on over the years since)... Someone WAS back stabbing... Now, when I get that pain, I start looking close at everyone around me, I recognize it for what it is now.