We have our washing machine with a tempered glass top in our kitchen placed under some cabinets with cans of food stored in them.
One day, I was searching in that cabinet, and accidentally knocked a can of soup out of it and it fell three to four feet to land on the tempered glass washing machine door.
You can imagine the loud noise that would create. The Black and White cat was sitting on top of the washing machine watching me, as he likes to do, and when that can hit the washing machine...he did not even blink!
I was astonished.
Nearly every cat I have ever known would have turned into a giant ball of fluffed out fur with limbs going in every direction to run away, but he did not move a muscle or even appear to have heard or felt the can that landed next to him!
That said, I wonder how they will like my saxophone when I begin playing it again now that I am retired!