Hissing
It’s best to back away very slowly if your cat hisses at you. They often do it when they’re afraid and agitated. Overall, they might think you did something wrong or approached them too quickly. Regardless, don’t interact with them until they’ve calmed down.
Knocking Things Off
Cats like to knock things off from high places, especially when humans use them. Scientists believe they’re practicing hunting. Cats enjoy playing with their prey in the wild, so batting is excellent practice for them.