Complaint By MIL

We moved into our new house almost three months. Time flies. We enjoyed a lot to stay in such a comfortable house even it's not a bungalow. My kid is more excited and always wants to go home to enjoy his toys in his playroom. Our house can say fully air conditioners. My mother in law keeps complaining every time she comes to our house that I should install fans in the dining hall and playroom. Well, I am not the one who suggested it, it's his son who wanted to install them. I feel great if there is another air conditioner install in our family hall upstairs. LOL!!! If really we install it, I am sure my mother in law will say it till we need to uninstall it. Anyway, she is advise us to save electricity.