since installing 9.3 Siri has occasionally been triggering without any prompting (I've been using Siri since the 4S and never experienced this before, I'm pretty sure it's not user error). I'm also pretty sure it's a bug because once triggered, it won't dismiss either. It won't go away when the home button is pressed, which works immediately whenever I normally invoke Siri. Kinda frustrating because it'll pop up and interrupt whatever I'm doing. Is anyone else experiencing this?