Being somewhat fossilised, I well remember the canteen at Well Hall Station in Eltham, S.E. London, provided by London Transport for the benefit of crews on bus services that terminated there. I think crews on the old 132 circular route run by Sidcup Garage also took meal reliefs there, as their buses ran nowhere near the garage. I know I was only a kid, but I do remember wondering why some buses seemed to spend an inordinate time seemingly abandoned, particularly at offpeak times. The 21A to Swanley and Farningham, in theory probably the most infrequent route to use the bus station, always seemed to be present, for instance.