On a day to day basis, no. In certain scenarios, where what your doing is justified, then yes. But then "justified" is subjective, so, I dunno.
On a day to day basis, no. In certain scenarios, where what your doing is justified, then yes. But then "justified" is subjective, so, I dunno.
No, never. It's stupid.
If someone kills your loved one and you go kill them, I understand that, but it's not justifiable. Vigilantism is never excusable, but it can be understandable.
We have laws and law enforcement for a reason. They're not perfect, but if everyone went around doing whatever they wanted, the world would be anarchic and a much worse place to live.