I went to the home of some friends for a dinner party involving three couples and numerous pets. He may in fact be medically dead. But dogs don't get all mopey over physical disabilities.
Dogs are deeply suspicious of anybody using a door.
After maybe 15 minutes, Elmo starts to remember who Buzz is, and he calms down. It is not a quiet household. But by gosh it is a secure household, thanks to Elmo's vigilance. After dinner, all of us, including the dogs, went into another room to have dessert and watch the Miami Heat play an important basketball game. The dogs watched the dessert.