I often find that, despite truly "bad" people being a minority, they are attracted to me and people like me. With their leechiness and parasitic behavior comes an invasion of my space and social manipulation. It never ends well, and often ends in a massive collision between me and the person in question. This happens obviously in environments where I can't get away, like work and college.
They never leave me alone. I've learned that the fix is to be incredibly selective of who I even let talk to me, and organize my schedule so I never get trapped somewhere where I can't leave at will. However, until I start a dream business, that will be impossible. Sometimes I feel like ASD functions like a physical illness, where I have to be careful not to naively walk into a trap.
It's not that I'm any more fragile (physically or mentally) or less intelligent than the manipulator (often the opposite), but their manipulation also involves other people, adding a level of complexity, like a chess game, where I am outmatched because of my obliviousness. Even if I win the "chess" part itself by actively participating, they find other ways to gain power, typically through my tendency to become socially exhausted more easily than them. I don't have the desire to engage in silent interpersonal warfare with people, and I don't enjoy it like they do.
And everything above aside, I also can't avoid physical confrontation. I've walked into some of the worst situations because I can't spot it like other people can. For example, I walked towards someone on the street with a sign and got threatened. I also get into conversations with a sketchy people and end up in confrontations often.
So how do you protect yourself from this sort of stuff? Or how do you keep your personal space and boundaries from being violated or infringed upon?