I did something at work today that might “technically” be considered “unethical” What do you think?

There’s this woman at my office who everyone thinks is REALLY annoying. Everyone is afraid to say anything to her because we don’t want to get in trouble or anything like that. I tried asking questions on how to get her to stop being so annoying, but no one seems to know. She was just driving us all crazy! I mean it’s hard to describe what she does to someone who’s never met her. She spoke with a nasally voice and really bad breath. It got to a point where she was just so distracting that no one could get anything done! Finally, I took out my KA-BAR knife and stabbed her in the back of the head. Was this “wrong” or some kind of faux pas? I’m afraid to go into work tomorrow because I think I might get in trouble with my boss!