I'm very glad that you posted this as I was thinking about using them when I need to be away for a few days at a time. That's one reason that I purchased an Airstream so that they could travel with me and not be left to who knows what.
BE VERY AWARE!!!!!
Took my 2 dogs to be boarded at Village Pet Spa on rolling ridge rd. for 2 weeks. They were returned to me completely infested with ticks....there were hundreds of them. I was very concerned about their condition and took them to the Vet. They really suffered.