I was playing Hearthfire... lot of fun, by the way. My adopted daughter wanted to have a fox as a pet, so I was like: "Why not?"
I found out why not. I came back to find the whole house permeated with this heavy breathing sound from that little fox! The Bard can play music, the fox keeps breathing. Try to read a book in the library... the fox kept breathing. So... loudly.
I tried fireballing the critter, but it made my daughter hate me, so I re-loaded. And I don't even want to use the house now.
Could an option be put in to take away the child's pet? Or at least... to make the pet's sounds less obtrusive? I found that a mod was made for the PC to lower the volume of the pet fox. But I'm using the much maligned PS3. Maybe that could be part of the next update?