Agree with others who have said treat it as an invitation not a done deal. One of the problems we all have is attributing motives to other people's words and actions. Assume the best of motives, tell them at a suitable point that she'll be staying at home and, if necessary, have a chat about expectations/arrangements at a later date.
What was the name of the corner shop you went to as a child?
You must be old if you have a purse or a wallet.
How will the VAT cut be funded?
Missing certificate has been replaced but is it going to cause issues for sale?
