Nicky, our Avatar bunny is about as strange a rabbit as I've ever had. We have four rabbits that aren't phased when I wheel in the shop Vac. I have a 30 gallon 6.5 hp model--large and loud. When I was cleaning the rabbit room a couple of days ago, Nicky was out and about. I move the monster vac over to her side of the room and was cleaning the floor and hutches. When I looked at the floor after a couple minutes work, she was laying right next to the vacuum on her side, legs crossed, sound asleep.