IMHO, retaliation is just wrong. I don't care if it's for one of those 'unwritten' rules thing or for showboating or for whatever. And yes, I think flipping your bat, and slow trotting around the bases, and jawing at people as if to say 'look at me' and 'in your face' is rude and is poor sportsmanship. That person needs to be set down a peg or two by their manager or by their colleagues. But starting a brawl over it? No. Getting thrown at? NO. And the bunt issue? That is even more wrong, imo, if there can be degrees to wrong. Playing the game, no matter what the score, and getting thrown at for just playing the game? Double wrong.