I've never came across an auto that came on with wind and vibration. I've heard it can happen, but I've tried to imitate it by blowing around the ends of the batteries and never had an issue, even held it out the window of my car at 70mph on the interstate! I really prefer the manuals though. They are just more fun imo, plus a battery + carto or atty/cart might be too heavy to hold in your mouth hands free the way you would with an analog. That was so convenient, but I HATE smoke in my eyes..
Don't take one to a concert. It will come on in your pocket. I've read several posts where people had to unscrew the battery to stop them from firing.