Dog positioning.

Since he was a wee puppy, large dog Tralfaz has had one favorite spot that's very annoying -- lying right outside the hall bathroom downstairs, the most commonly used commode in the house. I had considered reasons why this might be so -- the high likelihood of passersby, the interesting odors, the chance to get in and use the big water bowl -- but then I realized that he may have seen something on television that affected him.

Just a thought.