Pico, Turbo looks like a cat having fun!
Although as you were telling him "Don't fall" and still spinning the chair, I'm not sure what his exacts thoughts would be...
The fact he looks up at you so sweetly afterwards shows he has total faith and trust. What a beautiful boy.
And Grav - wow. Even I am not immune to a great story and cute puppy pics. He is so adorable. And it sounds like he chose a good man to live with.
Not sure about the literal naming policy though.
What if he had wandered along while your friend was having a pee, or a bit of lady action? I'd feel for a dog called Piss or Twat....