If the dice say you can't kill one of the player's characters, there's nothing to say you can't destroy some of their vital equipment instead.
It's not petty. It's realistic.
Anakin: So... does the blade hit me or not?
Pete: You dodge it by the merest fraction of a hair.
Pete: But it neatly bisects your laser sword, which <roll>... fails to explode.
Anakin: Lucky I have an astromech droid I can order to repair it.
Pete: Hmm. Speaking of R2-D2's awesomeness, he hacks the factory computer and frees your arm.
Anakin: Where's Padmé?
Pete: She's just been surrounded by several of the flying creatures.
Anakin: No, you're defenceless! Wait for me.
Pete: You're defenceless too.
Pete: Furthermore, you've used up 8 rounds since the first flying creature sounded the alarm so <roll>...
Pete: Six advanced combat droids appear. And Jango Fett.
Padmé: Quick, Mango! Take out the robots!
Anakin: You do know he's a bad guy?
Padmé: Huh. Are you sure?