Some are mine, some are not. The late, great Indy was mine and Gus, the one squishing bugs in the yard, is the current guy from the Riverside Animal Shelter: http://www.riversideshelter.com/ He's not a rocket scientist, but he is a charmer.
Update: Gus passed away on September 15, 2009, after a short battle with cancer.
Update 2: Current doggie is the little cattle dog, Gracey, from the Riverside Humane Society