I think the bus companies weren't being very careful about their destinations today. The 125 (Finchley Central - Winchmore Hill Station Road) claimed to be terminating at Warren Street, and I saw another bus (forget which number) claiming to terminate at South Mimms. There are no buses from North Finchley that go anywhere near South Mimms (OK, there's one school-route one that goes through Potters Bar).
(Hmm, OK, 84 is St Albans - New Barnet.)
I also saw a W9 bus. Which is, apparently, Southgate - Chase Farm Hospital.
I am turning into a bus geek, to go with being a tube geek. Nooo! We won't get into post codes...
(Although londonbusroutes.net is fascinating. I love notes like "route liable to withdrawal in evenings because of vandalism" and "liable to diversion after 18:00 in the event of antisocial behaviour".)
Speaking of buses, will TfL change the bus maps now that the Swan & Pyramids is no longer there? (The mark of London pub longevity: becoming an official bus stop.)