When it comes to handling life's big and little situations, you probably have quite a few skills that you don't think twice about. 

For instance, I can climb a tall ladder to paint high ceilings, help somebody who's seriously injured without feeling faint, and know from previous job training how to do a single leg or double leg takedown on a crazed person.

But I cannot change a tire.

Last week, while waiting for the AAA ...