Aggressive.
When an arrogant bastard of a security guard stopped me at the security check in Milan, Italy and demanded I go and check in my hand luggage because I had my small table microphone stand in it ("security reasons" my ass), I became so angry that I fumed. After passing the security scan for the second time, being late for the flight, I hit the wall hard with the side of my fist. Now I have a black mark where my wristwatch got caught between my skin and the wall.
I don't need a microphone stand to hit someone in the head, if that's what he thinks I was going to do with it.