In other news, Kids used to use Magnifying Glasses to burn Ants.
Years ago, while retrieving some equipment from the bed of my truck, my left arm touched the side of the bed. Ended up with severe burn to my forearm. 30 years later, still have the large scar. West TX gets pretty darn hot. Keep your truck in the shade if you can find it.
In other news, Kids used to use Magnifying Glasses to burn Ants.
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Back when I was a kid we made our own magnifying glasses by shooting the bottom of coke bottles dead-center with our BB guns. Result would be a conical shaped piece of glass that would burn ants, paper, arm, whatever.