I can't stand the sound of metal scratching metal. It makes my teeth hurt.
Kind of makes sense doesn't it - it's a lot easier to get your life together if you have a place to live and don't have to worry about getting kicked out or somebody stealing your stuff.
If you read the article, it says that some other places (the UK I think) are starting pilot studies.
What! The sound of crying babies is amazing!! The more the better I say: A crying cacaphony. Meheheh.
The crying sound is important because they don't have words. It has to be awful to get your attention.