I love when I get to watch Filbert bask. Just catching him flip out his back legs into the "superman" amuses me. And when he needs a little bit of hydration, he moves to the side of the dock and dunks his head in the water a few times.
I also love when I have Filbert out walking around, and the cat bugs him just a little too much, Filbert turns and hisses at the cat.
