Scale of evolution for many but not for all:

Before you could start putting coins in your little pink ceramic piggy once you started your duty. Then it was only when we closed the doors and now it´s directly when the airplane wheels goes up. Next is going to be from the moment we start meal service and after that it will be from the moment when the wheels are deployed for landing until the moment the aircraft touches ground – I´m rich.

(I don´t own the above picture)