All 3 of my kitties have very different reactions to the Rainbow cleaner. Trixie's is the most normal, I think. She hides under the bed until I get to that room, then zips out. Bo absolutely LOVES to be "Rainbowed" - he comes running and rolls around, purring loudly while I vacuum his tummy, tail, head, back - ALL OVER - with the hose and soft brush! Then he follows me room to room, begging for another suction session. Jazz has the opposite extreme reaction. She HATES the vacuum and seems to be traumatized by it, disappearing for several hours. Not even treats can draw her out of her hding place. I've resorted to putting her in the car before I even get the Rainbow out. She apparently can't hear it there and spends the vacuuming time in ignorant bliss, brought back into the house only after the machine is safely tucked back into the closet. She has no idea of her narrow escape from the noisy monster. Oh, the extremes we go to to accomodate our loved ones!