Between the supermarket shopper blocking the entire aisle with their trolley to the driver hogging the middle lane on the motorway, it can seem, at times, like it’s some people’s first day on Earth.
You’ve probably felt inclined to call these folks out as stupid for theirbehaviour.
But, sorry to break it to you, many of us actually fall under that term ourselves — and in more ways than one.
According to philosopher Igor Sibaldi, there are actually 12 ways someone can be stupid, regard...


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