I would be wary of creating singularities so near my castle. Perhaps something less likely to destroy my residence and the planet it rules.
Are you saying that people are not good judges of their own happiness indicies?
Implying that people don't know when they're happy or what makes them happy? I'd call that a safe one, wouldn't you?
Sendmail may be safely run set-user-id to root. -- Eric Allman, "Sendmail Installation Guide"