But why do cats knock things over in the first place ... If you react every time she pushes your cup of coffee off the kitchen table — which, let's face it, who wouldn't?

Dr. Sarah Wooten of Cats.com explained why cats knock things over or bat at a variety of household objects, attributing this ...

Cats have a knack for knocking things off their perches—even after you plead with them not to. There’s something seemingly passive-aggressive about the way they slowly tip over your belongings ...

Cats have a knack for knocking things off their perches—even after you plead with them not to. There’s something seemingly passive-aggressive about the way they slowly tip over your belongings ...

H. Ellen Whiteley to HowStuffWorks. But cats are also incredibly smart, and when they notice that knocking things over can cause a great deal of attention from their owners, they are absolutely ...

He designed a "special cup holder" that he then 3D-printed ... If there's no free-standing glass, the cat obviously can't knock it over, right? Of course, that certainly didn't mean Whiskers ...