I was a modelmaker for 30 years and was once tasked with creating a dozen or more bear traps for a photo shoot that were supposed to be maneuvered around by a model. We purchased several real bear traps and briefly considered just modifying them for safety instead of making fakes. Ultimately, the client decided that the real ones were not scary enough, so we made exaggerated ones from scratch, instead.
The ironic thing is that my crew and I considered the real thing much more frightening. It’s a tossup whether the spikes or the spring is the more intimidating element, but together they make for a disgusting display of mechanical force. The traps came plastered with warnings telling the user to never even test them. Only set them when you have a bear to kill then and there.
We all worked hard to get the gut churning imagery of how these work in the wild out of our minds afterward. If I had the foresight to imagine a day when a human of this nature would intentionally do it to himself instead of a bear, it would have been quite a bit more comforting.