Ecology of the State

On a lighter note I saw my first parasitized aphid today, it sure looked content, all fat and dead.  That ecological interaction between the the parasitic wasp that is host specific to the aphids in the greenhouse that I work at reminds me of the relationship that unions have with their affiliations.  Is that normal?  If not normal at least it is interesting and really pretty amazing that both parties really need each other, even in the minutest capacity.