Are we related?
I do that, too! I've done it since I was a very imaginative, oversensitive child who drove my mother crazy with my fears.
My faith teaches me (rightly) to depend on God for my family's safety, and I'm thankful to do it. But my imagination still wants to take off at times and render me helpless. "What-iffies" can paralyze you if you let them. Don't let them.
What if there was a strange noise in your house at night? Well, do you know what IS a strange noise? Start listening to the noises in your house. Every house in the world has weird noises; you just need to know which noises live at yours all the time and which don't.
Do you feel safer if your doors are locked during the day? Go ahead and lock them. Many people do. Make sure you have a key with you at all times in case you happen to lock yourself out! Use common sense about answering your door; what that common sense is depends on where you live.
When your local fire department offers free home inspections, get somebody to come out and give you suggestions. Then you have a few less things to imagine about. If there's a Neighborhood Watch meeting near you, go to it. The police officers who run these meetings do not want to scare you; they want to teach you to be prepared. That's a good thing.
You know how to watch out for your son. So do it. Just stay aware - be observant. Most people's children do not get kidnapped or killed. You don't have to obsess - you just have to use the common sense you have.
It's good to think. I think, "OK, really, what is the worst that can happen?" I face it - and try to make a plan for it. The worst has NEVER, EVER happened. That may not be due to my plans, but it's a fact nonetheless.
The thing is to use your common sense, do your homework, and not pass fears on to your son. He needs to see you as a confident mama - and if that confidence comes from facing your imagination and planning instead, so be it.
Robert E. Lee said, "Never take the counsel of your fears."
And your other answer-ers are right - be more careful from now on of what you watch and what you read. The writers and producers are not as interested in your safety and well-being as in getting your attention (and your money). You don't need to study every warning or sensational story that comes across the media.