@Angle I /think/ so, yes. At least something along those lines.

But as to your original question I think there's some combination of:

How badly will it hurt others and how likely is that to happen? Are there ways it can be done WITHOUT hurting others and it's just a risk of screwing up?

When it hurts oneself, is it because it is a thing many people think WON'T hurt them or won't be as likely to hurt them as it is, but there's a systematic bias?