Instead of Han shooting first or Greedo shooting first, have the bartender say, “Hey, that green-skinned creature isn’t welcome at the bar. Let’s all kill him.” Everyone pulls out their blasters and shoots Greedo dead. Han Solo then gives the bartender a great big hug, and everyone in the bar hugs each other over this momentous achievement. Overly happy music plays in the background…
…Then, the movie goes on.