He's definitely got the sun bathing stance down. I bet he also loves to lay in the sun at home too. It's amazing what our dogs will do to be in the sunlight.
We bought a dremel to do his nails and he absoutely hates it. I let him look, snif and move it while it was not off and he just backs up. I turned it on and he ran away. So we will us the dog clippers for his nails, those seem to be working.