Biggest handgun myth is about dogs and self defense.
Loose aggressive dog is not a human. It is dangerous vermin that can kill you! You are absolutely allowed to play it safe, defend yourself, and shoot it (the same way you would kill mosquito).
"It just wants to play" is not an argument, you are not a "toy" for some strange dog. It was "reactive" is also not an argument, you have no obligation to suffer its "reaction" to the full end.
Dog owners will say they have a right to mangle child, for petting their dog (it was self defense). They will also insist dogs are safe around the children, two sentences latter. Do not listen to them!
I am a dog owner, and I agree that a loose and aggressive dog is a liability to humanity and you are making everyone a favor if you kill it even if you could have escaped (e.g. you manage to get into your car in time). If it was attacking you, it could be a child (or another dog, too) next time. I would say that even a loose, non aggressive dog of a breed that is very statistically likely to mangle people (e.g. Bully XL) should be taken away from their owners that same day.
Now this is certainly a take. A bad one, surely, but a take nonetheless.
Don’t pet strange dogs. Don’t let your children pet strange dogs. Don’t mess with animals you don’t know unless you’re willing to risk being bitten or worse. Simple as that.
But like don't going around shooting dogs people ask your child not to pet
Dogs kill about 30-50 people in the U.S. every year.
Intimate partner gun violence alone leads to about 700 women being killed every year.
So by your logic, if you’re a woman and your partner has a gun, and is walking towards you and you can’t clearly tell that they don’t have a gun on them, “they just want to give you a kiss before leaving home” isn’t an argument. They’re vermin that can kill you and you’re absolutely allowed to play it safe, defend yourself and shoot them.