Tom Anderson writes:
How about a route like this:

Hammersmith
Edgware Road
Liverpool Street
Aldgate
Tower Hill
Gloucester Road
Edgware Road (reverse)
Gloucester Road
Tower Hill
Aldgate East
Barking (reverse and do the whole thing backwards)

That, i think you'll find, would make it a tea-pot service!

Yep, "Barking" is the word, all right! :-)
--
Mark Brader | "But [he] had already established his own reputation
Toronto | as someone who wrote poetry that mentioned the el."
| --Al Kriman