Slight lapse of focus....

Originally Posted by just another ref

The example given is at the beginning of the game. Why would that not apply if it happened at some other point? What do you do if you discover in the midst of the proceedings that the teams are going the wrong way and you don't know when they started?

If I somehow have a brain aneurysm and allow the teams to start going the opposite way during the middle of a half, I doubt my brain would be functional enough to remember the example.