Another one in the "if they organized it better it would be better for AF and for passengers: boarding of a longhaul flight by bus at CDG on Friday in pouring rain (the one that brunos escaped from). The infamous "Parking Hotel" that has become much rarer since S4 opened, but they still board planes there from time to time it seems, by bus.
The bus drives up to the plane, but then stops about 50 meters from the stairs. Result: passengers have to walk/run through the pouring rain, but since they don't know how many people are already queuing on the stairs they wait in the bus so that they won't have to wait in the rain in case they can't get on the (covered) stairway. But that problem is solved because AF has dispatched two ground staff, one to stand at the bottom of the stairway and see if more people can fit on, and one standing in front of the bus door to let people through in little groups of 6-8 passengers. It would be faster, more convenient for pax and wouldn't require two ground staff if the bus only drove up to the bottom of the stairway.
Now probably someone will come and tell us that it's "impossible because of CDG", but all those impossibles can only be as impossible as it was impossible to not do BP checks at the door, priority access to security lanes, oneway fares, self-printing of luggage tags, etc. In other words: it can be made possible, and other airports show the example.