If there's a frisbee or ball in sight, my female border collie won't even attend to basic bodily needs. And she'll chase the object while she's in pain and exhausted or shivering with cold and not notice. She has lupoid onychodystrophy which causes her nails to come in deformed and split and painful and she'll still obsess on some running play/task while she's got bleeding paws and can barely walk. An an owner we have to intervene to remove the object of obsession and force disengagement.
This is a product of centuries of breeding to focus on a task and enjoy the task above all else.
This is a product of centuries of breeding to focus on a task and enjoy the task above all else.