Dream: Neighbor in my backyard

My neighbor was in my backyard reconfiguring the drainage tubes that extend from my roof to my yard. This neighbor, Tom, was born in Germany and actually lives two houses over. He has the best yard (front and back) in the neighborhood. In my dream, I was prompted to go outside in the middle of the day. I’d heard a noise. When I went outside there was Tom and an accomplis. They’d propped up the tubes closer to the house to about half the height of the roof. Then they’d connected the tubes to a gutter tube that went to the street adjacent to the next tract of houses.

Now that I’m awake, I wonder why they propped up the tube.