Lenz's coked monologue at Green — "Lenz tells how once in the…"
Lenz tells how once in the Back Bay on Boylston outside Bonwit’s a pushy prosthesis-vendor gave him a hard time about a glass-eye item of jewelry and got his issues’ juices flowing and then down the prosthesis-vendor line another vendor simply would not take No of any sort about a bottle of A.D.A.-Approved Xero-Lube Saliva Substitute
Context
World-building buried in a confabulated brag: Boylston St. has a "prosthesis-vendor line" — plural vendors, hawking glass eyes as jewelry — a throwaway implying a maimed-enough population to support street retail in body parts.