Is it normal to hate someone so much that you halt everything til they leave?

I work under a manager that I hate very intensely. It's gotten to the point where even her presence completely shuts off my concentration, and I just stop whatever I'm doing, sit there, and stare at her (Of course I'm doing this while she can't see me) with this dirty look on my face until she leaves.

All of my coworkers hate her with a passion too. She's selfish, demanding, disagreeable, inconsiderate, and she literally squeezes the life out of everyone.

I know what some of you are thinking. " Why don't you just quit, and find another job? ". It's not that easy. As of right now I have a very hard time keeping up with all of my expenses. I've cut back on everything to the furthest extent possible without starving myself, even then I'm just barely getting by month to month.

Most of my coworkers I've talked to are in the same situation as I am. We're all struggling, and are afraid to quit because of the uncertainty of not finding another job quickly enough to pay for our expenses.

It's normal to hate somebody who deserves it, but is it normal to hate somebody to this extent?