If Ken is the one who devised the white eyes and made the desicion that the white eyes signaled "HULK OUT" I figure that is exactly what will happen. Remember, the tv Hulk is fictious and Ken J. is his creator. You can imagine pretty much whatever you want to happen, I suppose, but ulitimatly it would be up to Ken to change his own creation. JMO.

Being shot in the arm while beginning the "hulk in" would cause pain, and a return to the Hulk state. No question about it. It's happened a few times that the Hulk was interrupeted, but not antagonized while relaxing into morphing back to David, and the hulk in didn't occur, so even without pain, it would seem a simple interruption could cause a ceasation of the morphing process.