I have three cats, and one of them is a formerly feral very nervous and skittish cat. My other two are super socialized and nice with humans but like to fuck with the other one and eat her food. We usually spray them with water or clap loudly when they're messing with her or eating her food, but yesterday one of them wasn't responding to loud noises or me calling out her name at all and so I threw a small couch throw pillow to her general vicinity to scare her off. I didnt hit her, but today i was sitting with her on the couch and rearranged the throw pillows for her and ahe bolted off, clearly terrified, and now i feel bad.

TL;DR I threw a couch pillow near my cat after the millionth time she steals food from her sister and now she's terrified of them.