No way of knowing what exactly kicked this off, sounds like it was something about a note the couple left on the psycho neighbour’s car. I guess if it was a particularly rude or aggressive note they can’t be too surprised at the onslaught of bricks practically tearing their house down. Pretty frightening either way:

https://www.youtube.com/watch?v=AnYvpfbnBik

Imagine living in between this gal and the troll neighbour from hell.