This snippet refers to a railcar driver.
"One driver on the Maldon branch was so impressed with the transformation of working conditions, that he turned up for work in his best suit. This was fine till the vehicle failed and he had to finish his shift driving a J15! "
Bet he was really pleased !
Ever heard of a loco driver wearing his best suit at work on the engine ?
Also found the bit I was looking for.
"It wasn't unknown for passengers to have to push start the railbuses on the Maldon branch in the winter because the battery was flat. Being of limited capacity, if the railbus had been left outside on a cold night the battery couldn't start the engine."
This was the type of railbus referred to.
http://www.railcar.co.uk/hisOthers/WMintro.htm