I tried explaining to him that I haven't had the chance to take a lot of pictures lately, but he would have none of it.
So I got out the camera and took some pictures:
But that didn't seem to cheer him up much; next thing I know, he's back under the chair...
So finally, I did the only thing that I knew would cheer him up:
It's hard to sulk when you're getting petted. ;)