Man-with-a-hammer syndrome considered beneficial:

Upon receiving a hammer for christmas, some people thank the giver, carefully replace it in the original packaging, and save it for whenever it's needed. Other people grab it with gusto, and go around enthusiastically attempting to pound in every problem they see for a few weeks.

I think the latter are more equipped than the former to (a) recognize nails that need to be hammered, and (b) hammer proficiently when it needs to be done.