NASA scientist vs. Porch Pirates

[Peelee]

Those are the risks inherent in deliberately harming another human being. You open yourself up to damages in the process of preventing you from harming them.

Unless the thief knows what's in the package, it's not deliberately harming another human being, it's negligently harming another human being. Booby traps are almost always deliberate harming, on the other hand (and only not when they don't actually harm).

Not the best argument to make, there.