Mike Rowe looks back at jobs involving tight spaces: stripping and painting inside of Mackinac Bridge tower ("Bridge Painter"), replacing pipe underneath house ("Plumber"), KC-135R Stratotanker fuel tank cleaner and boom operator ("Fuel Tank Cleaner"), Stamford hurricane barrier zinc anode changer ("Bell Maker"), storm drain cleaner ("Mushroom Farmer"), cleaning the inside of the boilers of the steam yacht Medea ("Steam Ship Cleaner")