Mike Rowe has made a career out of doing disgusting stuff. As the host of the Discovery Channel series “Dirty Jobs,” Rowe would muck-out, dig under, flush, slog, and slide through some of the most filthy and foul places on the planet.

But whether he has been hanging from rafters or slipping through sewers, Rowe consistently showed his viewers how even the most grungy, grimy, gross job still has its own dirty dignity. Rowe always offered respect to those who were “showing him the ropes,” whether they were demonstrating how to scrape up penguin poop or harvest worms. The underlying message of “Dirty Jobs” is that no matter how nasty, a job is a job and doing it well gives a sense of well-being and worth to humanity.

Except . . . . and it’s the exceptions that prove the rule . . . some jobs…