Responses

It reminds me of Einstein's teacher. Einstein had a slow development when he was a kid (he can speak when he was 4 years old), and during his early days of school, he was 'different' and considered not very intelligent. Because of that, his teacher wrote in his school report that whatever he will do, he will never amount to anything. Cruel isn't it.
Hey grandpa, telling your student that they suck and not giving them any direction or advice on how to improve makes you a terrible teacher. Holding a grudge against someone because of a real or imagined slight that they're FAMILY MEMBER did to you makes you a terrible person. Grandpa, you're garbage.