Everything mentioned above as a scam is very on point! We had people two weeks ago come by the house and showed us a demonstration, everything mentioned above is what happened. They even tried to see more of the house by asking to demonstrate on our bed in our bedroom.
Please be aware of these things! Luckily my husband and I caught on to her weird questions and didn't allow her further into the house.
A few minutes ago we had a different pair come to the house and try to use the same sale pitch on us and we rejected right away. Pretty sure they're trying to see if we were gone for the holidays to rob the house seeing as Christmas is two days away.
Please watch out for these things and "red flag" questions.