Is it normal i worry about this?

I want to produce your movie now. We'll call it "The Never Ending Paragraph".

You shouldn't worry about what's beyond your control.
We have warning stickers and such to make sure people are aware of the dangers while using certain products. And if a guy somewhere decides to shove a deodorant in his ass and tear his rectum, that's only his fault.

At some point in 6th grade I realized that anything can be used as a weapon. They typically fit into the following categories:
- Smothering (e.g. pillows)
- Stabbing/Scratching (e.g. pencils, screws, fingernails)
- Blunt force (e.g. pots and pans, a sock full of quarters, holding a weight in your fist when punching someone)
- Shoving down their throat (e.g. tissue paper, spoons)
- Poison or other chemical weapons (e.g. bleach and toilet bowl cleaner makes chorline gas, which was used in WWI)
- Instrument of torture (e.g. music, films)

That's not including everything used as a weapon in fiction (e.g. Freddy Kreuger using dreams, Aliens using your body).

Then there's all the body parts, the penis being a particularly noteworthy one.

If you're a believer in God (if not, just use it as a metaphor), just think about how that guy feels.

This is what warnings and terms of use are for. If you tell a person about the existence of lava, and that jumping into it will kill them, and they jump into it anyway, then nobody would blame you.
If you put a choking warning on the toy's package, and the parents buy it for their kid and leave them with it unattended, then that's their responsibility. In fact, in every instance, it would most likely be by chance that your object was in play instead of the many other objects. It'd be a miracle that the baby had made it that long without being left to choke on something else.

In my personal opinion, the simple fact that you are worried about this shows that you have compassion. Many people fail to worry about hurting other people - hurting people in ways that makes them a bad person - in situations requiring less compassion than this.

You're overacting a bit.
I've seen kids beat with barbie dolls, wooden kitchen spoons, garden hoses, fishing poles, and yes
Newspapers.
You aren't responsible for what some shithead uses your product for.
If that were the case.
Ivory soap would be liable for the beating in ' full metal jacket '
If your product is there or not, makes no difference.
The abuser just grabs whatever is handy.

You are getting way ahead of yourself.

Do you know how many aspiring writers are out there? You know how few succeed?

It reminds me of people who are worried about financial problems they might encounter if they win the big lottery. It is like, "Your only concern should be making it to work on time come Monday."

Relax. Just retain control over what products bear your trademarks or promos for your stuff. Don’t let things like this impede your progress, otherwise you’ll never realize your dreams.

It's rarely creators' fault for the actions of idiots. Stupidity will find a way to fuck stuff up and hurt people, with or without your help.

I'd read something like that. Just don't bring out anything weapony with your franchise, the rest is out of your control.