Sometimes the heroes would actually prefer sneaking around to all this straight up fighting. Give them a chance to avoid the deadly encounters now and then.

The bonus is that sneaking around requires more planning than just charging in with guns blazing. Seeing what sort of wacky plans they come up with often makes it all worth while.

Transcript

Leia: A stealth mission. That sounds slightly less suicidal than a frontal assault.
Han: Hey, can't have everything.
Luke: Especially since Vader has the Lost Orb. The Peace Moon is probably fully armed and operational.
Leia: They have the Lost Orb??
R2-D2: Yeah, but don't worry, I'll find it.
Luke: Okay, so we bluff our way onto the Peace Moon, and split up into two teams.
GM: <sigh>
Luke: One to find the Orb, and one to storm the command centre.
Han: Ooh! We disguise ourselves as clone troopers, and Chewie—
Chewbacca: I am not playing a Wookiee-gram.