In reply to Carolyn:
The difference between all the novices out there and the very experienced is pretty minimal, the experienced person is more likely to be out in poor conditions/weather pushing the boundaries and may become unstuck trying to tweak the conditions, fatality's happen due to this scenario every year, avalanche, slip or fall, even guides are not infallible ( eg the 3 deaths on Aonach Mor in an avalanche), a very experienced fell runner trying to break some record died falling down an icy five finger gully in trainers.
We were all inexperienced once, i think it is more down to common sense or just bad plain bad luck, with a few exceptions.
PS i go every where in my jesus creepers!