Rainboe
Sorry not convinced with your arguement yet.
The "lets get this FA off the aircraft because she is severely p%ssing me off and I don't want to be distracted in a while when we are in a crucial phase of flight" theory, seems almost ridiculous, when written in a very simplistic form as I have.
The actual example of a possible heart attack that may or may not have been influenced by a blazing row pre flight has too many "maybes" in there to convince me either, for now anyway.
I agree, there is probably more to this than meets the eye but as a a senior professional captain, with two FOs also on board, I still do not see the flight safety implications.
No problem with being corrected but I just haven't grasped the flight safety concept being put forward as a reason for the divert.