ok heres something that's annoyed me for a long time. why is everything on a starfleet ship/station etc so damn clean? There is never a single speck of dirt on the carpets, not a fingerprint on a screen, no wear and tear on anhthing. The only time you ever see dirt is when the ship is half blown up! What do they do, shoot messy eaters and anyone with a nosebleed or a crumb on their uniform get beamed out into space incase they get the place a little dirty?