It was so hot and he is so small I figured an extended visit to the exercise yard was the best choice. After lots of sniffing, exploring and quiet cuddle time I was happy to see that he is quite obedient. In my experience here at the shelter, this is often not the case with small dogs though they are nearly always sweet and affectionate. Clyde comes when he is called, sits on command and even seems to heel. I tried getting a video of heel, but it looks pretty strange.
He is such a nice little guy, let's hope he finds his new family soon.