Bicycle Repairman Ben Wyse
Ben Wyse is one of (as far as we know) the only two mobile bike repairmen in the country. Apparently a "bicycle powered bike shop" is a rarity. Martha's talk with him includes some audio from glam-rockers Queen ("I want to ride my bicycle!") and Monty Python (the "Bicycle Repairman" sketch, of course).
Ben mentions a "Talk of the Nation" article about finding happiness.
Here is Ben on YouTube.