BA0718 (LHR to ZRH) on Sat 30 Jul got the dreaded A10 bus gate. This was a little surprising given the inbound got in from GLA around 12pm, and I'd been sitting in the CCR looking at multiple open A gates for the entire period. Not sure any of the reasons given above would apply in this case! I guess it's possible they can only do UK arrivals at a certain number of A gates (really?) and once they bussed the passengers off could not be bothered to move the aircraft for takeoff, as presumably that would require a captain.