Andrew Cusack has an excellent post about the progress being made at the Clear Creek Benedictine monastery in Oklahoma. Please visit Cusack's blog and take a peak at the pictures (including the one above with the dog sitting in on the liturgy).
Notice that the dog is not facing ad orientem, but instead facing versus populum. Let us remember that St. Thomas taught that animals are "irrational creatures" and no doubt the good monks allow the dog to be present in this way to further prove that versus populum is "irrational".
May our Lord grant that I might one day visit Clear Creak. Any one ever been there?