Lesson's Learned... yet still bitter

So I learned something today and we will see if it sticks.
First a bit about me and my personality. I am usually a happy person however I do tend to get a tad cranky (read as down right pissed off) when I feel someone is being belligerent and rude to me or those I care for.
So yesterday at work (I work in a manufacturing plant) this witch decided to move me and my station to where she was working because she no longer wanted to work there. It was arranged that I was going to move anyways, but that wasn't the point. She took it upon herself to move me when she wasn't privy to the fact I was going to move anyways. It angered me. She has always had a hate on for me from years ago when I briefly was seeing her son. She has made enjoying my job down right miserable and uncomfortable. I can not talk to my supervisor about this situation because she is buddy buddy with this 'woman'
So anyways as I was sitting down at the new station I muttered some not too nice words about her and female parts that begin with the letter 'C' Someone over heard me and and felt the need to 'tattle' on me. I know what I did and said was wrong and I should have controlled myself better but I was beyond frustrated at that point with the witch.
Today someone asked me how much trouble I got into for calling her that word, to which all I could reply was "damn she told on me" I knew right then and there I was going to be fired. There is a low tolerance there for any form of harassment and apparently mutter that some one is acting like a 'c word' is a form of harassment. Who knew. So all day I waited for the call to head to the HR department for my severance check, they always fire someone with 15 minutes left in a shift. I knew it was coming and those that I talked to about it also agreed that yeppers I was out of there. So like clock work at 2:15 I was called in and sitting there was our HR person and our foreman. First words out of my mouth were... "I knew I was coming, it took long enough so I'm gone eh?" To which they replied... "not unless you want to go" Seriously! I didn't get fired! Oh I got a good reprimanding and written up for my slip of the tongue. I am on a tight rope and need to behave, but I still have a job!
So the moral of the story, the lesson I learned is.... Bite my tongue!!!!!! Watch what I say and whom I say it in front of!
What a day. Time for a nice cup of baileys and coffee.
Have a nice night all!