Being a plumber requires more than just a knowledge of home pipe systems. A good plumber has to be ready for anything under a house, and certainly can't be claustrophobic. Watch this video from Discovery Channel's "Dirty Jobs."
On a trip to a Hawaiian organic coffee farm, "Dirty Jobs" host Mike Rowe learns how farmers use fertilizer and compost to grow the perfect cup of joe. Take a look at the process of growing and roasting coffee in this video.