Yet people lose their lives every year by ignoring this clear warning. They see the road, with its the center line running down into the moving water, and the road and the line come out on the other side. They think they can pass through the water, perhaps assuming it can't be very deep. What they don't know is that the road may have been washed away altogether and they may be driving into a 15-foot chasm. The car goes in and is swept along by the current, necessitating a difficult or impossible rescue effort.
Warning signs deal with consequences.
This machine takes coins but gives none of them back. There is no jackpot. The yield is zero. But he reported that day after day, he emptied it of coins put in by people who could not bring themselves to believe the sign meant what it said. I will keep the dollar and give you nothing in return.