You can’t know where a guide dog might live as a working adult. You don’t know who their human will be. If they’re paired with a human in a rural environment, but get distracted in the presence of livestock…

A distractable dog can’t be trusted to be a safe partner for their human, can they? They test the dogs against a wide variety of environments and stimuli, and if there’s anything that really seems to throw the dog off balance then they can’t be passed through training unless the fault can be corrected.

Jess never quite got over her goat thing, so she was released from the program.