Not Canada Water - but I change at London Bridge for the Charing Cross train. A train that is stacked up in the morning - arriving one after another every '1 minute' - but people still run down the stairs, knocking over old ladies - to squeeze on a train that goes two stops like there's one train to Charing Cross a week and they *need* to be on it.

You can clearly see the next train waiting a foot or two down the track.