Watch Dirty Jobs Season 5 Episode 4 - Leech Trapper 

Mike teams up with the boys from Bartos Bait & Fish to catch leeches that will later be sold for fish bait. Then it's off to the Green Tripe factory in Hollister, CA where Mike helps make BARF (Biologically Appropriate Raw Food) for dogs.
Keywords: watch, dirty, jobs, season, 5, episode, 4, -, leech, trapper