I can confirm what you say. After working decades for animal welfare I saw so many shocking things, that I dreamed about it.
Human beings are the trigger if animals are agressive!
Believe me: In Eastern Europa animals will be treated like the last dirt on Earth. They must live in an unbelievable suffering. In some countries animal life counts for nothing. This is a fact and a shame!
An example: One member of our zoo was rescued from a Romania animal shelter.
A pervert Romanian animal abuser cut off the upper part of her mouth, the complete maxilla, when she was 6 or 8 months old. In the animal shelter she was kicked the whole day. She had been freed under extreme conditions and came to us when she was 1 year old.
Today she's 13, a filthy bugger but so social, so happy, never aggressive, despite everything that had happened.
She loves apples so much.
Here are some pictures of her:
If you live with a dog like that in love, after a few months you no longer see the handicap.
She's not the only rescued one...
Leopold