I don't know why, this guy was a little dumb maybe.

I was a skinny kid, then became overweight gradually and in my teen years was overweight and maybe even obese.

One time at PE in middle school (live in the Netherlands, I think this is the name) the PE teacher was discussing something with the class. He pointed at me and was like 'he will never be skinny' or something. He didn't say it to bully me, at all, he said it as a matter of fact or something, he was otherwise a very nice man.

Joke is on him though, I am very close to a normal BMI and am lifting, calories in and out is key!

Incidentally I studied to become a teacher for a while and was interning at my old middle school, I saw him again and talked to him, lol. He barely even remembered me.

Still as a 13-14 year old that was really hurtful.