Does it happen any time she is close to you or only in certain locations in the house? (petpeoplesplace.com)
Power - ups appear at certain locations on the map at random times over the course of a match. (entertainmentbuddha.com)
I found it kind of nice to have to stop in certain locations for a while, instead of moving from one to another fairly quickly, to enjoy the view. (thenerdstash.com)