So, I don't think this is covered in the book, but comes up a lot in my game. What happens if a character's declared action becomes impossible? Possible examples of this: the target of the declared action is killed, the character is knocked off his feet, or the opponent moves out of the way.
Does the character have to declare a new action at half-dice?
This seems unfair or unsporting in a number of situations. If Character A is a Thug in melee with an enemy, declares an attack against him, and Character B Steelpushes a coin through the enemy, the crew gets punished for killing an enemy? What if there was another enemy right next to Character A that he could just as easily attack?
Additionally, if we have two characters in conflict with each other, Characters A and B, with A declaring first and acting last, if A says that he's going to punch B, B can then declare that he's going to punch A, then step back, and Character A loses half his dice, and then they do the exact same thing next beat?