Wish there was a menu item to semi-permanently disable touch shutter.
There have been a couple of times where I left the camera on, slung it over my shoulder, and due to contact with my body or elbow or something, touch shutter was turned on via the button on the touchscreen, and it began taking pictures.
The funny thing is that some of these accidental exposures are interesting - like surprise street photography. Still, I never use touch shutter and I wish I could have it not waste battery/card space.
There is a soft button (touchscreen) on the bottom left. Make sure you press info until you see basic exposure settings and then you'll see it. It looks like a hand and says "off". That lets you toggle touch shutter. Hit info two more times and you wont see any more options. Should be safe to touch now as all it will do is auto focus. You can switch the beep noise off too so you wont hear it when its bouncing about.