Any of the rules that, if followed, could reduce the deaths that occur from electrocution due to lightning. During a lightning storm one should remain indoors but not near open doors, fireplaces, radiators, or appliances. Plug-in electric equipment (e.g., hair dryers, electric toothbrushes, or electric razors) should not be used. One should not take laundry off clotheslines or work on fences, computers or word processors, telephones or telephone lines, power lines, pipelines, or structural steel construction, or use metal objects such as fishing rods or golf clubs. When outdoors, if lightning is spotted nearby, one should plan an evacuation to a safe, substantial building or an enclosed metal vehicle. Hilltops should be avoided. In a forest, shelter should be sought in a low area under a thick growth of small trees. Open spaces, wire fences, metal clotheslines, exposed sheds, and all electrically conductive elevated objects should be avoided. People should get out of water and off small boats but stay in an automobile if driving. If an electrical charge is evidenced by hair standing on end or tingling of the skin, one should immediately squat with feet touching each other and hands clasped around the knees. No part of the rest of the body should touch the ground. It is important to be aware that, when lightning strikes, the charge may be as much as 100 million volts. Trees conduct electricity better than air, and metal and water conduct better than trees. Lightning will strike the tallest object.