As others have already said, I try not to hurt anyone, but if you went about your life thinking about that all the time, it might make you so afraid to move that you didn't live your life to the full, which would be a Bad Thing. Everything you do has the potential to affect a lot of other people and it isn't possible, however careful you are to avoid hurting people, always to see the consequences of all your actions. I think my answer would be no, I would go on as I already do.