When I was younger, I was easy to provoke. Of course, only fighting when provoked by definition means you're not aggressive, but I'm sure not everyone sees it that way.
These days, I'm a very passive person. I'm very good at ignoring people. That's not to say I'm calm.. The smallest injustice or inhibition of liberty (and being a minor, these are many) can give the me the awful urge to tear, crush, and generally destroy things. While I can suppress the urge, it's a rather awful feeling which takes some minutes to pass. I swear one of these days I'm going to snap...