Monika Míčková is a retired Czech rhythmic gymnast. She competed Worlds 6 times.
She posted an awful retrospective of her long career. It begins with …
You are lazy.
You are incompetent.
You are stupid.
From the mouth of the coaches I heard these words almost every day and took them as a normal part of the drill. They also behaved equally to other girls, regardless of age and performance. No one imagined something strange going on, everyone accepted that it was supposed to be. …
You can read it here. (Czech)
I used Google Translate.