I tend to agree that the 'big cat' predator problems sound the scariest to me. Fortunately we don't have them here or I would be a nervous wreck on walks as well. One of local wildlife biologists says that our coyotes (as in many suburban/rural areas) are a bigger problem for us, because they get so comfortable with human activity and and used to feeding on pet populations. They aren't stressed by the human proximity, but rather take advantage of it. As much as I knew he wasn't a 'thrilled by the hunt' kind of a guy, he really did stress that the situations can just get worse and worse until someone starts shooting at them.