The American satirist Joe Queenan is fascinated by anyone who can turn an idea into a revenue stream.
So three years on from his series A Wonderful Way to Make a Living - in which he met the penetration testers, the naked yoga instructor, and the emergency shirt delivery guy - Joe is back to meet the brains behind the businesses bucking the economic downturn.
This week he meets the company that rents out an extraordinary array of empty properties - including police stations and fire stations - to people in search of cheap rent.
The only catch is that they have to guard the property too.
The producer is Miles Warde.
Joe Queenan investigates recession busting business ideas.