@imbj - Thanks for posting this... any treatments for this in dogs is great and great that there is ongoing research ongoing for all cancer in dogs and humans too!
The golden I used to have did similar things w/her ears/eyes when I approached w/a leash. It was a habit formed from years of me sliding a new collar on with the leash attached. She'd squint and pull her ears back in anticipation of the collar being slid over her head.
The smile? I never got that.
I saw this show for the first time last night. I didn't think it was sad, because the nice doggy gets adopted into a home where the people have been evaluated and dog is placed with people who are best suited for the individual dog. It's like a reality game and they all know only one home gets the dog. The people know they might not get that dog. But I'm glad that the people who don't win on the show, will probably adopt and rescue another well deserving dog. Just my take . . . but I only saw the one show.
That is a happy ending! My SIL's boxer ran out the door one Christmas morning at the other SIL's house. We all watched in horror as she dashed into the street and ran INTO an car. She bounced off the passenger door, and seemed completely unphased!