When I was a little kid...
getting 20/40 score in a test makes me go :
but now, getting a 20/40 is like :
That moment when you're listening to a good story and someone tries to talk to you.
Greeting someone I dislike:
When people say something along the lines of 'I need to talk to you' or 'can I ask you something'.
That awkward moment when you're talking in class, then your friend stops talking and you see that your teacher is looking at you.