As Michael felt himself start shrinking he had no idea he was being watched. He was too busy staring in awe at his naked body and how everything around it was increasing in size. He didn't see the curious eyes looking at him from the window next door. It was the Stuart-Andersen household: James Stuart, Cooper Andersen, and their three sons Aaron, Bruce and Greyson. Which one (or more) of these guys watched the Fountain of Size appear in their neighbor's yard? Which of them saw Michael jump in and start swimming--and jump out and start shrinking?
And what would they do now? Grab Michael when he gets small enough? Shrink or grow themselves? Grab a container and collect some water? One or more of the above?