Reply #12: I respect your thoughtful-ness (is that a word?)...

[LeVeL_HeAdEd_OnE]

you are obviously devoting much time to trying to sort this situation out. Another explanation for their behavior may simply be that they, like so many people nowadays, are barely aware of the world outside their bubble, or personal space. Or what I prefer to call it: "Head-Up-Butt Syndrome". If your co-workers are decent, reasonable folks then there is no reason to think they won't be reasonable if you respectfully state your concerns to them. Give it a try. If they respond like asses, then unload on them with both barrels. ;)

EDIT: I hope it works out for you.