Jim is...well. Not in as good a mood as the last time he was in.
...see, the thing is, he doesn't want this dog. So he went home to get it, and told Sherlock it was time to give him back, and yay for a-hair-and-vomit free home, right!?
Sherlock had nodded. And looked sad. And stroked Buster's head goodbye, AND JIM HATES THE WORLD, OKAY.
So anyway, he is here and the dog is tied to the table leg, and not even a strawberry daiquiri is making any of it better.