Are any Neurons Firing?

It is amusing to watch 14 yr olds putting their heads together and trying to brainstorm. It is a bit chilly at the cottage so they decide they are going to build a Zip line today. They want it to end in the lake. They spent hours coming up with ideas, running out to buy rope. Some of the ideas were insane and I had to kibosh! Attaching it to the bunky as a start point, or my other favorite to the hydro pole! I also liked the insane idea of attaching the end to a canoe in the lake and one boy would be in the canoe or they would anchor it. I have never witnessed anything like it. After 4 hours Jimmy and Matts were mentally done with it, but his two other friends were insisting they finish. It ended in a disaster, no broken bones but it was a one run zip line.....