But my first thought tends to be "how can I handle this?" and not "oh, well, there is nothing I can do."
My thoughts exactly. What's that thing on our hips that so many of us carry concealed actually for? Showing off at the range or protecting the innocent from serious bodily injury or death?
Do we think a real world situation is going to be perfect? Do we think that the bad guys will give us enough time to bar the door, grabs the kids, pump the shotgun and call the cops?
What happens when the bad guys are a pack of zoo animals? Well we never thought of that one, so there must be nothing we can do.