The second instance (the same judge) came in the next day's standard class. The handler and dog team started the run with jump, jump, teeter. A judge's whistle sounded. However, it wasn't the standard course judge. It was from the ring next door. The handler stopped, the dog refused the teeter. The judge saw her confusion and explained the whistle wasn't meant for her. The judge then asked her to go back and start her run again.
How kind, how generous that judge was to give these two teams a "do over" when circumstances really warrented it. I was very impressed by this; it restored my faith in fair play.
Have you ever seen a judge ask a team to start over?