How can you force people to be more water wise? By making them think that an innocent animal's life depends on their actions. Designer Yan Lu's "Poor Little Fish Basin" uses guilt and fear to help curb the wasteful use of water.
Every time someone uses the sink, the water in the fish bowl—which is not actually connected to the sink water pipe—starts to drop. When the water is turned off, the water begins to rise again. Whether or not the fish can actually die, you'd probably feel compelled to be more efficient at the sink.