For those not familiar:
A frog was hopping along the shore of a river looking for a place to cross. He came upon a scorpion sitting on the shore. “Hello, friend frog,” said the scorpion. “It appears you are looking to cross the river. I too want to cross. Would you mind carrying me?”
The frog was taken aback. “Why, if I let you on my back to cross the river, you’d sting me and I would die. I don’t think I’ll do that.”
The scorpion immediately replied, “There is no logic to your concern. If I sting you and you die, I will surely die as well, since I can’t swim. I wouldn’t need a ride if I could swim.”
The frog thought a moment and then said, “Your logic makes sense. Why would you kill me if it would result in your death? Come along and climb on my back and we’ll cross this river.”
The scorpion climbed on the frog’s back and off they went to cross the river.
About halfway across the river, the scorpion raised its tail and stung the frog. The frog was both astounded and disconsolate. “Why did you sting me? Now I will die and you will surely drown and die also.”
The scorpion replied, “I can’t help it. It’s who I am. It’s in my nature.”
Always and inevitably, everyone underestimates the number of stupid individuals in circulation.
The probability that a certain person (will) be stupid is independent of any other characteristic of that person.
A stupid person is a person who causes losses to another person or to a group of persons while himself deriving no gain and even possibly incurring losses.
Non-stupid people always underestimate the damaging power of stupid individuals. In particular, non-stupid people constantly forget that at all times and places, and under any circumstances, to deal and/or associate with stupid people always turns out to be a costly mistake.
A stupid person is the most dangerous type of person.