That is excellent.

That reminds me of...
Years ago there was a Formula 1 car race in Europe. The race organizers wanted slow the cars down on a long straight. They decided to put in a shallow chicane by putting a couple of movie prop foam plastic rocks in the appropriate spots forcing the drivers to jog around them. The drivers complained until they replaced the "rocks" with blocks of white foam. The fake rocks scared the pro drivers even though they were made of the same stuff the white blocks.