It happens in full scale life, too, cwatters.
After de-icing, one does a controls check amongst other things. I give controls name and direction of movement on the intercom.....the guy on the ground confirms full movement and direction.
You give the ground guys a bum steer on movement direction (intentionally or not) and I'll guarantee that a lot of them will fail to pick up the error. We are'nt even talking an Engineer in my outfit -- it's often one of the cleaners who multi-tasks as a push-back guy.
Good game !
