Indeed. I remember when I was a child I sat for several hours contemplating the concept of safety. I came to the conclusion that no matter what measures we seem to take as people there's always something we don't expect. Accidents happen, people get sick and bad things happen to good people.

This is why I prefer the non-agression principle instead of a non-violence way of doing things. I've got no problem going psycho on someone trying to hurt me or someone I love lol. We should all have at least that basic sense of self ownership, the desire to strike back when aggressed against