The bus driver stopped off for over 10 minutes at terminal 1 and got off the bus - leaving the engine running (which eventually conked out) - and provided no explaination as to what she was doing. She later returned with a Marks and Spencers bag. She drove on some more and then again with no explation she stopped and swapped drivers. She then spent a futher 10 minutes telling the new driver about the lovely pasta dish she just bought for her tea and they had a lengthy discusion about what one of their colleagues had been up to. After a long day and flight home with 2 small children, you can imagine how frustrating this was. She took so long that both children fell asleep on the bus!!!