

A dog without leash shows that the owner hasn’t bothered taking dog training classes or in the case of my country that they haven’t bothered learning the law. If they can’t be bothered to do that, I worry that they are not responsible enough to take care of the dog, and they shouldn’t be allowed to own a dog. Dog ownership ought to require a license or mandatory training.
The person using the perfume might also not even know about the issue, but in that case, I don’t think it makes sense to blame the consumer. There are simply too many types of products that are potentially dangerous when used wrong. Perhaps the seller ought to have warned about it, but I doubt that would make much difference. You can still be upset about it being produced. Lots of things are like that.
Sometimes you can blame the consumer and sometimes you can’t.
“Allowed until someone is sued for doing it and insurance can’t keep paying out” more likely.