I enjoyed the lighting a tomb with mirrors myth. It was simple and straightforward. I was not surprised by the result (plausible but not practical), due to the sun moving.
As for the Build Team, we have decided they do not even field calls from the insurance company anymore. Torrie’s harpoon, while it worked, was scary. On this one, I really think they should have pressed the “do not try this at home” bit harder. Maybe they should have had the “professional drivers on a closed course, do not attempt” standard white text scrolling across the bottom of the screen.