: “Are there any aspects in a chart that make you leery that the native might use his powers for ill?”
I don’t think so. The chart shows a person’s energy and energy is neutral, until directed.
You can think in terms of electricity. Electricity is energy, right? You can electrocute a human being with it. Alternately you light up a Christmas tree!
Money is energy. You can hire a hit man with your cash and have someone killed… or you can put a kid through college.
So no. I don’t think you can look at a chart and have the expectation a person is going to be a nasty piece of work. You can see examples of this all over the place. There are plenty of good people with bad charts and vice versa. We have free will!