In the park near where I shot this, you'll often see a guy walking his two dogs at lunch time. Normally they hang fairly closely with him. On this rainy day one of the dogs strode up to me while the other dog and the owner were on the other side of the park. "What are you doing, exactly?" She walked straight past me, spat out a tennis ball, had a drink from one of the puddles left behind by the rain, then decided to take a bath in another one. In retrospect I could think of many ways that I could have done this shot better, but I had only a second or two to get what I could.
I just loved the "I don't care if it's raining, I'M having fun!" attitude.