In this commercial we see a man inside a toilet cubicle with a red, sweaty, grimacing face, straining with all his might. We assume he’s trying to go to the bathroom. However, as we pull out we see that his index finger is pointed above the ‘full flush’ button. He continues to strain. He gives one last mighty groan and shifts his finger to the half flush button and presses. Relief at last – he’s saved a load of water.