Let's see...
You go out of your way to show up at a active/potential riot.Next you get up next to the Police Lines where the police are already a bit irritated from trying to control said active/potential riots.
Surprise Surprise.....You get tear gassed and/or hit on the head.
What do you figure is going to happen at G20 Riots.That is what they are known for,Violence.
Maybe she learned something...I doubt it though.