SATX*APhi, I am sorry you are having unpleasantness at work

That is never fun.
As far as advice, I would have to tell you what my parents always told me "violence isn't the answer"

hehehe
seriously though, I can understand how this situation can be disturbing, especially if you have to work with this particular lady all the time. it is just my opinion that you should try to do something about it. try talking to her (even though you say you know she will not listen it might be worth a shot to try).
i think as long as you are the "bigger person", you will come out strong in the end. people that work there may begin to notice that all of this is one-sided (only certain people making rude remaks, and you not making any remarks in retaliation may be noticed!). if the operator who you speak of is really the way she is, other people that work there may begin to notice and not even listen to what she has to say anyway.
i hope this helps, and i hope you had a nice evening at work