education (37) - (Germany rail crash) 100 people died

https://kamchihau.blogspot.com/2022/08/angle-effect-in-optical-fiber.html
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Ref:   https://kamchihau.blogspot.com/2022/08/httpskamchihau_62.html
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John: In a lesson of anatomy,  a professor kill a mouse and say to his students, "It's an educational example.  You guys mumble, "Thanks professor".
Me: OK.
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John : In a lesson of anatomy,  would a professor kill 100 mice and say to his students, it's an educational example.  You guys mumble, "Thanks professor. " ?
Me: No, cause,  an educational example doesn't need the death of 100 mices. One mouse dying is far enough for an educational. 
John : Excellent.
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John : Have a look https://en.m.wikipedia.org/wiki/Eschede_train_disaster 100 folks died. It's done by Bradley.  Would Bradley say it is an educational example?
Me: No,. An educational example doesn't need the death of 100 folks. One folks dying is far enough for an educational example. 
John: Excellent.  Would Bradley ask students to thank him?
Me: No,  cause,  Bradley did that for the God's sake,  not for any students' sake. 

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John : Have a lookhttps://wodewangzhishime.blogspot.com/2021/10/httpswodewangzhishime_97.html. The matter isn't over yet. 2 weeks after, 
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Kelvin : 2 weeks ago,  I demonstrate to you how to hack the email of John.  John is an educational example. 
Mr. Ho :So, 
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Kelvin : Tomorrow,  John will come to this spy's company.  You approach him. You  look at the ceilling  and soliloquize, "Millions thanks my boss ." . 
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Mr. Ho: I thank you in my mind.  It's enough.  It's redundant for me to thank you in action. 
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Kelvin : Redundant ? I hack John for your own sake not for the God's sake.  Shouldn't you thank me ?
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Bradley: See .  https://en.m.wikipedia.org/wiki/Eschede_train_disaster . I killed 100 folks.  Did I ask  anybody to thank me ?
Charles: No,  you didn't.  Because, you did that for the sake of God not for the sake of any students.