rr,
I work for an aviation company. That company provides me with insurance to protect me in the event of a mistake of mine (inadvertant or gross negligence) were to cause harm to others and I were sued and lost, the insurance will kick in and protect myself and my assets. In the industry I am in, it is not a common insurance, but it is starting to change. As for my personal assets, I allow my home owner's policy to protect me in the event of an issue there. As for out in the world, should I do something that harms someone and I am sued, well, then I have to rely on my attorney to get me out of the issues that arise. It is a good question, and one best answered by a legal consultant.