Not BA certainly. Time to spare, go by air.
I wonder if there is a clue here?
How many feet on the ground are there at LHR to get the SLF loaded and a 747 off the ground?
Checkin desk staff - no SNCOs at front of house.
Luggage handlers - out of sight.
Documentation check - RAFP
SLF hanging round and wait staff - newspapers, magazines, cafeteria, last minute shop etc - all airside - BZZ? none?
Departure Lounge checkout - ground steward/ess
To aircraft - bus driver or guides.
Never a mover in sight and each to their own job.
However when it goes pear shaped their 'DAMO' is often invisible too. The clue might therefore be in the landside and airside entertainment. Make Brize etc a bit more customer friendly rather than a late night bus shelter.
At ASI, when the Timmy started through it came through at 0'Chr*st hundred but the NAAFI cantee was only open 0800-1700. Al Bowman, the stn cdr soon put paid to that.
At an O'Chr*st hundred turnround in Colombo the entire shop/cafe area opened up for a single Vickers Funbus. I still have a hideous piece of Singalese porcelain to prove I was asleep at the time.