The Beauty of Hang-gliding

While driving home along the coast from Monterey, I passed a spot on the sand dunes beloved by hang-gliders. The dunes rise high above the surfline below, enabling the gliders to catch the thermals that come up off the water. It's a pretty sight to see when the air is full of the hang-gliders, for their contraptions are multi-colored and swoop about not unlike butterflies.

The one thought that puzzles me is why no one has ever dressed up in sand-camouflage, hidden themselves on the top of the dune while a hang-glider is waiting to catch a thermal and, then, right when the wings are rising and the cables are tightening, rush out with a pair of hedge-clippers to clip through a cable or two.