"Almost done." The lead installer informed me when I entered. "One last set and we are out of your hair. Should save you quite a bit on your electric bill."

"Has anyone else stopped by?" I asked, and they shook their heads. "I was going to grab a soda are either of you thirsty?"

"That would be nice." One of them said and so I grabbed two and set them out on the coffee table in the living room.

I settled into working on my engineering project when the installers called out that they were nearly done. The lights went on and off a few times as they tested their...