No.
As safe as the person using them chooses to be.
The Romans used weapons to fight and win their opponent. Romans had at least two weapons on them at the same time just to be safe. :)
they setttled by keeping there weapons safe
The hikers made sure to stay on the safe, marked trail while exploring the forest.
Never
well there is the naruto website but I don't think they sell the weapons anymore ^_^
after u complete level 12 of vigilance missions
Weapons and ammunition are stored in an armory, magazine, silo, arsenal or at a weapons or ammo dump. In a home they should be stored in a secure safe or chamber/trigger locked with ammunition locked up separately.
All weapons had to be laid down near the temple, making Mecca a safe and peaceful place to do business.
Well, they can only destroy the planet and kill everyone, so, yes.
There are some sets of rules as security measures in place to keep all students safe. The school council will first checks all student's goods for making sure that there is no weapons.