I'm not passive-aggressive. I don't generally like confrontation and I'll avoid it where I can, but I believe in being direct and if people push me I will push back, hard. I will only take so much abuse.
It annoys me to some extent when people are passive-aggressive with me I suppose. How are you supposed to know if you're doing something wrong if people don't tell you? If it needs to be said, say it. If people don't like it, tough muk. That's just how life is sometimes. Quite often it comes across as very dishonest as well, at least to me.