Mother has used a very scientific method of checking her power consumption in an effort to reduce her electric bill. She goes to the front door and sees how fast the meter wheel is spinning around. She has decided that the electric kettle is the culprit for her large electric bills and says that the wheel spins more slowly and the water heats more quickly if she heats water for her tea in a saucepan on the electric stove hotplate. She takes no notice of what other appliances are on when she checks, or whether the air conditioner compressor is running, or just the fan.
Ah well, harmless enough I thought, until I saw her carry the boiling water in the saucepan to her tea cup. Admittedly it is only one step, but I can see potential for disaster. I will have to get scientific and show her that the wheel is not spinning significantly faster when using the kettle. What she does need to do is get over her paranoia about the kettle boiling dry and so stop boiling a full kettle of water every time she wants a cup of tea.