If you don't know what it is and what it does and how it works. When your car starts slowing down by itself oneday you can cause an accident. Just that feature changing a basic tool you use regularly requires training. If you are to stupid to understand why you shouldn't be laughing.
Again, please, now as a coherent statement?
Assume you will lose your netbook at some point: encrypt the entire thing using truecrypt or similar, and make sure you can access vital data from somewhere else: either use dropbox, or use google docs, or whatever.
We all agree on the necessity of compromise. We just can't agree on when it's necessary to compromise. -- Larry Wall