> If I gave you a gun without a safety could you be the one to blame when it goes off because you weren’t careful enough?

Absolutely. Many guns don't have safties. You don't load a round in the chamber unless you intend on using it.

A gun going off when you don't intend is a negligent discharge. No ifs, ands or buts. The person in possession of the gun is always responsible for it.

> A gun going off when you don't intend is a negligent discharg

false. A gun goes off when not intended too often to claim that. It has happned to me - I then took the gun to a qualified gunsmith for repairs.

A gun they fires and hits anything you didn't intend to is negligent discharge even if you intended to shoot. Gun saftey is about assuming a gun that could possible fire will and ensuring nothing bad can happen. When looking at gun in a store (that you might want to buy) you aim it at an upper corner where even if it fires the odds of something bad resulting is the least lively to happen (it should be unloaded - and you may have checked, but you still aim there!)

same with cat toy lazers - they should be safe to shine in an eye - but you still point in a safe direction.