This ad in China could not be clearer. It was put out to highlight the fact that human activity(hunting, fishing, economic development, poaching etc, etc) has caused the extinction of thousands of species of animals on the planet. A subway passageway in a Chinese city was turned into an animal shooting range with the animals pointing the infrared sensors-equipped guns at passersby. The guns triggered the sound of gunfire as someone walked by.
The ads ask the question:What if it was the other way around? Well, I'd personally be s&!#@%*$g bricks. That's the only way I can put it.