Lefty has a few jobs:

*discover and catalog all of the neighborhood smells
*warn off passing trucks with his big throaty bark
*keep himself in shape with lots of stretching routines
*rout out those troublesome squeakers in his toys
*get our lazy bodies out of bed on weekend mornings
*make sure we didn't accidentally throw away something important in the trash
*lower our blood pressure and elevate our moods with his goofy antics and warm, solid form