How Do I Tell People To Back Off?

[WeezyBengal]

I take this approach:

If its not someone im interested in, I came to the realization that I will most likely never see or talk to them again in my life after the current encounter. It sucks to be rude to people, but just say "Can you please leave me alone?". That's all you need to say.

Now if its a co worker or a family member or friend then obviously I wouldnt take that approach, but a complete stranger? We'll see ya...