This is Jasper in 1996She stayed in for about an hour before wanting to get out. Now she's under my night stand in the bedroom. That humming noise was real loud last night. It even drove me crazy. Can't imagine how it bothered her. I don't hear that noise yet tonight. It's a miracle! It hasn't shut off for three months. But last night it didn't start up loud till 10 PM. I'm hoping we both can get a good night's sleep for a change.