Like swinging a bag of cats against a wall

My lovely practicing drove my friends' cat out of the room today. The placid fat mackerel tabby named Pandora had been firmly ensconced on her cushion on the sofa for hours on end. This cat does not move, let me tell you. But off she went to the kitchen as soon as I started tuning. Oh, and here she comes now that I'm done. It's so insulting.