Hard to measure but I believe I think more about how things might fail than other family members.
There's a balance to be struck though, because often worrying too much about things that don't happen or saying "I told you so" when they do only really serves to annoy people.
Did you ever try thinking about how they might turn out for the best instead to compare results? Energy follows thought, the more you focus on it the more likely it is to happen from my experience. And the only place and time you're ever going to stop failure from happening is here and now using up to date local knowledge.
Take it or leave it...