I expect that every cat owner will have a long list of things that their cats have destroyed over the years.
Let me start with yesterday. My wife's cat (please note that, in this instance, she is my wife's cat), who is the young one, just short of a year old, likes to climb, as most cats do when they are young enough to do that.
Yesterday, she decided she needed to be on the top shelf of my floor-to-ceiling bookcase. She had been up there before so I knew she could do it, but this time she decided she needed more room.
I watched her do it, but couldn't stop her in time. I have a few of the old glass insulators that they used to use on power lines, and one of them was sitting on my bookcase.
Well, she didn't bump it. I was watching her, and she deliberately pushed it off of the bookcase onto our printer-scanner that was sitting on a table directly below the bookcase, shattering the glass on the printer.
It couldn't be clearer that she couldn't have cared less. She did it on purpose, she would do it again, and she has no idea what all the unnecessary yelling was about.