The Barking Dog

When we got Wilber he almost never barked. About a year ago I discovered that if I howled he would start barking. So every now and then we sing together. My husband thinks we're a little crazy and a lot loud so we don't do it very often. Then about a month ago he started barking at me when we played in the back yard. It's a funny kind of bark. He barks once and his tail spins around, barks once again and that tail spins and so on. He might bark 6 or 8 time before he takes off running in big laps around the yard. He thinks this is so much fun.
Sometimes I have to leave him home alone for a few hours to run errands. Now when I get home and pull into the driveway I can hear him barking like he is going to eat someone up. When I open the door he does the DANCE & SPIN and wants to go out, then back in and a have cookie. He seems to thinks this barking thing is something new and wonderful that only he can do. Sometimes when he barks he seems surprised that that noise came out of him.