In one of the Laura Ingalls books they run around pouring water on top of their crop early in the morning when it turns out it's frozen. It seems to be an old method.
Edit. I looked at some German sources. I'm not sure why this article says she was attacked by a group of men in the streets. They don't know. She might have been attacked at home. Her step daughter has attacked her with a knife before.
I don't live in a city but I know all the train and bus numbers around here. Because in some countries you get public transport outside the big cities ...
Erasmus and no. Turns out all three countries I've lived in take away your pension when you've not lived there for a while.