Good question, I guess it all depends how the airline (which one if you dont mind) categorized you when you left............. But they are going to ask you why you left, and you are going to have to be honest, so essentially its the same thing. If hey didnt ask you to leave, I would not have left, I would of tried until they kicked me out, but you know yourself better than anyone so in reality maybe it was a very mature decision................. Its not going to ruin your career, you just might have to explain a little more than you would like...........But what was the issue, and how much time do you have whats your background?