King has always done this, all on his own. I really wish I could get the "stand up and run on two legs" thing he does on tape.
He's sitting normally, then the front legs come up and he sits up, then he "stands up" on his back legs (he seems to do this very easily, it's spooky smooth, no shaking legs), kind of arches his back, and runs through the house with his front legs never touching the floor until he wants to stop. Think of the Velociraptor from the Jurrasic Park movies, it's very close. He looks totally insane doing it, there's a huge grin on his face.
That grin is funny enough as it is.
My friend was over and we were watching a movie on my new (just after they came out) DVD player. King was messing with Molly, as usual, and she ran down the hall to get her ball, and King launched himself and ran down the hall on two legs and slammed her into the wall at the end (he didn't hurt her, they do it to each other all the time). My friend looks at me and says, "What the hell was that!!?" I answered, "Just King being crazy". "No!, how did he run on two legs like that??", "I've never seen anything like it before, actually, I didn't know they could do it at all!" He does it about 3-5 times a month. The next door neighbors had a party yesterday, and he did it when their dog jumped over the fence into our yard, and got a huge reaction, lots of "WHOAHH!!" "I never saw a dog do that before!"
I have spent hours with the video camera, waiting and waiting and he just wont do it. One time, I no more than gave up, and just turned the camcorder off, and he goes and does it.
My camcorder takes about 15 seconds to fire up, so I got nothing. That's the closest I have ever came to getting it on tape. My video camera died a while back, and so I'm doubtful I will ever get it.