albertlee,
You are right. Playing with words and changing their meaning is an unfair way to argue. But since, our goal here is not to prove that we are right...
let me explain a little bit more.
I just try to look beyond words, to see how words correspond with my inner feelings of the situation. That's how the most amazing discoveries can be made. By the way, this is one of the main reasons to learn foreign languages. Sometimes we see that the word meaning that we take for granted can be wider or have unexpected nuances. I do not know a good word for "negative passion", but in my experience such thing does exist and can be used as much as a "postive passion".