*She could easily have directed the conversation away from the sore parts of her past, but she places a great deal of stock (when she can) in the ethic of reciprocity. Kirk let her pound him like a nail and pry open some of his festering emotional wounds on a first meeting, it was only fair that she share a few of her emotional scars in turn.*

It has its uses. It can help to determine whether something should be restricted or banned by the definitions set out in existing laws, rather than needing to write new laws to account for every new vehicle, weapon, and form of recreation that somebeing dreams up.