Light Sabers and Force Fields

Lately, it's all about Sterile Fields. So naturally, Star Wars came to mind (I don't even know why though. I don't even like Star Wars...or Star Trek for that matter). Anyway, the Sterile Field is kind of like a Force Field of sorts. Well, I dunno. Maybe it's not, but it's sacred anyway...you've gotta keep it separate from everything that's not sterile. 

Hmmm...maybe it's more like magic, b/c a lot of things just seem to magically become sterile (i.e. we "consider" various things sterile). Clearly, things that are pre-packaged sterile (like sterile gloves, catheter kits, etc) are sterile, but other stuff is just "considered" sterile (i.e. b/w your collarbone and your waist or the table is sterile, but anything outside that is not. Your armpits are not considered sterile...even if you use deodorant. 

If you even touch the air outside this Sterile Field with something sterile, cuidado! you have just broken the Force Field; the Siths* are gonna take you out! It's suicide to even think about moving something not sterile through a sterile field. That'd be like, I dunno, leaving the house without your Lightsaber...or your cell phone.

*I'm really not a Star Wars nerd. I had to Wikipedia that one.