Leakage Meter aims to change human behaviour. It balances emotional and behavioural design and attempts to reduce wasted standby power consumption - "electricity leakage". The concept of electricity leakage was used to create a playful, engaging shape. During development the shape was altered several times in an attempt to satisfy safety and behavioural needs: the original pipe- themed concept design gave way to a fire hose. Leakage Meter informs the user once the device consumes unnecessary power using visual and acoustic signals, emanating from the lighting drop. The meter shows the environmental benefits, trying to educate people and foster environmental awareness.