What's my line?

While visiting a classmate at her home, I started talking with her father, Bill. I commented on his baseball cap, black with a Pink Panther character stitched on the front. He told me the following story.

After aging out of a career in the military, Bill, who wasn't too well educated, nor especially physically able in his later years, held a succession of low-end jobs. The baseball cap, he explained, came from Owens Corning, a company that makes glass and fiberglass products. They use the Pink Panther as a mascot.

Bill's job for Owens Corning was to smell samples of air collected at various locations near their facility. If he detected any odors that might prove offensive to the surrounding communities, the company took steps to correct matters.