1. If a player cancels threepio's interrupt with It's Worse does threepio's sacrifice get cancelled too or only the effect of threepio's cancel? You could of course use the one damage to kill Threepio too but do you have to or could you use the 1 damage elsewhere?
2. Reactions are a part of framework events. Jawa has a forced reaction where he would return to your hand if you lose the edge. But what if your opponent lays down a heat of battle? This is also within the framework event, what gets resolved first? Does the Jawa die or does he get returned to the owners hand?