With acting you wanna see if you can get into trouble without knowing how you're gonna get out of it. It's like the exact opposite of war where you need an exit strategy. When you're acting you should get all the way into trouble with no exit strategy and have the cameras rolling.
It was in San Diego and I was onstage and couldn't remember how to play the guitar properly. I was in terrible pain and my nervous system was just going wild like somebody had just run a car over me.