Uggh...I hate when that happens! Have you THOROUGHLY cleaned the bedding and everything??? Sometimes they can still smell the urine and think that that is the place to go. Malone tried it on our feather comforter twice (grr!) and after the second time, I sent the comforter through the washer 3 times. He hasn't tried it again, but then again we haven't allowed him opportunity either. I hope you can figure out what's wrong with Rosie!