OK so i was just thinking that some rebels might put sand in a big circle around the bases to keep vader out or keep some on them in those little sand bottles you get fairs and stuff to throw at him.
I got the giggles about this because it makes Vader seem like a vampire that the rebels are trying to ward off with garlic or something. The mental image of those rebels in the hallway getting hunted down by Vader in Rogue One escaping by hurling tiny vials of sand at him while he hisses and recoils like he’s been doused with acid is pretty great.
Hera Syndulla, meanwhile, is sprinkling just a smidge of sand outside her bedroom door each night. Kanan, meanwhile, is yelling from inside the room “what are you doing, you’re not putting sand outside the door again are you? It’ll take forever to get that stuff out of the ship you know!” Whatever, Hera thinks. She’s got a Jedi in her bedroom after all; if that semi-robotic Sith Lord really hates sand that much, she might as well use that fact to her advantage.