Okay, who forgot to tell Bunny and me about the underground tunnel with a color-changing LED (Light Emitting Diode) light show synchronized to music [1] at the Detroit Metropolitan Wayne County Airport [2]? We had over an hour to kill!
Aaaaaaaaaaaaaaaaaaaaarg!
[1] https://jimonlight.com/2008/11/18/the-mcnamara-tunnel-detroit-airport/