I had a cat once that was playing with a plastic grocery bag and got his head stuck through the handle. He got spooked and ran, and of course the bag "chased" him. We caught him and removed the bag, with no harm done, but for a long time after that, he was afraid of plastic bags, and would leave the room if he ever heard anyone opening one.

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I had another cat that liked to climb into the kitchen sink and lick the dirty dishes. We didn't think we ought to let him do that, so if we ever caught him at it, we'd grab him out of the sink and throw him on the floor. He continued to do it, but very quietly, so we wouldn't notice. But once in a while, there'd be the tell-tale clatter of dishes shifting in the sink, so we'd go in the kitchen and chase him away.

One day he was innocently dozing in the living room when we heard the sound of dishes spontaneously shifting in the sink. The cat jumped up and ran away and hid.