The Seventh Doctor visited their shop in 1989 to buy cat food. Len followed the Doctor out to the side-walk when the Doctor exited without paying for the bundle of cat food he was carrying. Ace paid the bill.
Behind the scenes edit
Len's co-worker Harvey's was portrayed by Gareth Hale's long-time friend and comic partner Norman Pace. The grocery shop scene was, in effect, a Pace & Hale joint appearance.