Educate your spotters!

[trucktramp]

Wow, I guess I'm lucky.  I trust my s/o completely when backing.  All movement is the driver's  responsibilty but she has been driving commercial trucks for many years so she knows what is required when going backward.  If there is any question, I get my butt out of the seat and check, then usually have a conference to determine the best route of attack.

[gus]

Well, I've ground looped a tail dragger (no damage), crashed my own airplane but never did a gear up, so I must be nearly qualified!!