The below linked story is just one example of the unseen dangers of confined spaces.

Gas leak kills 3 workers at Port Everglades – 05/21/2008 – MiamiHerald.com

It is possible that the folks at Dirty Jobs do test for such hazards, and just don’t include the testing in the aired shows, but it would make me worry less if they showed the testing (or at least let us know that they did).

And for Pete’s sake Mike, wear safety glasses more often!