People toss the word around, and I do not think they truly understand what it is.
I have hated, I had a deep hate for my father, who ruined my childhood by being a drug(I found out when I was 7, and hid it from my family until I was 15) addicted jerk....I hated him enough to very seriously consider murdering him.
He stopped, and I got a GTO and we worked on it together, and the hate went away, but I still know what it really felt like.
He died a sick lonely drunk, by himself with a bottle of vodka in his hand, I do not hate now at all, I just feel sorry.