As an asthmatic triggered by allergies including dogs and cats, I would be demanding a different room if a dog had been in the room previously. It only takes 1 foot step into anyone’s house who has pets for me to sense that they have pets in there house, even if the owner keeps their house spotless. Housekeeping would have to steam clean the floors, walls, and curtains, and wipe down ever inch of the villa for me not to know that a dog was in the room. I wish this wasn’t the case with my health, but I bought in with the knowledge that the DVC villas were not pet friendly. I don’t stay at hotels that are pet friendly for this very reason, because even if they are cleaned above industry standards I can always tell that a pet has been in the room and will have problems with breathing. Luckily for me my asthma isn’t life threatening but for many others it is and should be a serious consideration.