Quick Bus Overview: D3

Route number: D3
Bus type: Runt-sized single decker
Route: Crossharbour to Bethnal Green (London Chest Hospital), via Canary Wharf, Limehouse and Wapping.
Frequency: At first I wondered if this bus was a figment of my imagination the first few times I tried to catch it, after waiting more than half an hour with no bus materialising. However, a glance at TfL's website reveals that this bus does indeed exist in theory. A point to note is that this bus is nearly always on some diversion or other and there will probably not be anything warning you of this on the bus stop. Still, the excitement when you do actually witness one of these rare beasts makes up for it.
24 hour: Are you kidding?
Crowded: Nope, nobody expects this bus to come so nobody catches it.
Speed: Quite decent. Expect a bumpy ride through Wapping if you have a speedy driver - those cobbles mean business.
Environment: Fairly civilised, probably because of limited number of passengers. Mostly Canary Wharfers going home and Asda acolytes going to Crossharbour.

Advice for passengers using this bus: Take a good book to read at the bus stop. Something that will take a while to read, like War and Peace or the entire series of the Encyclopaedia Britannica. You may also want to take a video camera to record the emotional moment when the bus arrives.