I think for some it’s a natural reaction to bang on a wall when there’s a loud or annoying noise on the other side. Like if your neighbour in the flat next door is playing loud music, or a toddler is crashing around above.
Now, in Australia it’s very satisfying to do this. Because walls are hollow, made of plasterboard, when you knock or bang on them, you are rewarded with a hearty sound.
But what happens when you do it in Austria… on walls made of concrete?
Ouch.
Just the sound of your cry of pain as you remember that the walls are, in fact, made of concrete.









